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2012/10/05
05 Oct 2012

DLink DSN 6110 iSCSI Array

Today, I have several Centos 6.3 VM servers which have to share the same files for an application. They use NFS client with a simple automount on a NFS server v4 hosted on a Centos 6.3 VM. The NFS server is a VM on a physical host Dell PowerEdge R805 with a PowerVault MD1000 SCSI RAID6 storage array.

This server is a little bit old (2008) but should provide good results :

  • 4xGbe ethernet links
  • 4x10Gbe ethernet links
  • 32GB of RAM
  • 2xQuadCore Opteron at 2,2GHz

Write and read access from an application server via NFS to this server are just poor. I tried to realign partitions (a centos ext3 partition on a vmfs5 on a SCSI RAID5...), to set the Linux disk scheduler to NOOP, ...

It's time to go to iSCSI ! Here is my test of a DLink 6110 iSCSI storage array used to hold the datastore of a VM (Centos 6.3 NFS Server) in a ESXI 5.0 Server connected in Gb.

Here is the network topology I have set to test the DSN 6110 :
Network topology for the test of DSN 6110

And here is the iozone result

$ iozone -azcR -f /servernfsclient/iozoneAEFFACER -b /root/tmp/excel.xls

	Iozone: Performance Test of File I/O
	        Version $Revision: 3.394 $
		Compiled for 64 bit mode.
		Build: linux

	Contributors:William Norcott, Don Capps, Isom Crawford, Kirby Collins
	             Al Slater, Scott Rhine, Mike Wisner, Ken Goss
	             Steve Landherr, Brad Smith, Mark Kelly, Dr. Alain CYR,
	             Randy Dunlap, Mark Montague, Dan Million, Gavin Brebner,
	             Jean-Marc Zucconi, Jeff Blomberg, Benny Halevy, Dave Boone,
	             Erik Habbinga, Kris Strecker, Walter Wong, Joshua Root,
	             Fabrice Bacchella, Zhenghua Xue, Qin Li, Darren Sawyer.
	             Ben England.

	Run began: Mon Oct  1 12:43:03 2012

	Auto Mode
	Cross over of record size disabled.
	Include close in write timing
	Excel chart generation enabled
	Command line used: iozone -azcR -f /servernfsclient/iozoneAEFFACER -b /root/tmp/excel.xls
	Output is in Kbytes/sec
	Time Resolution = 0.000001 seconds.
	Processor cache size set to 1024 Kbytes.
	Processor cache line size set to 32 bytes.
	File stride size set to 17 * record size.
                                                            random  random    bkwd   record   stride
              KB  reclen   write rewrite    read    reread    read   write    read  rewrite     read   fwrite frewrite   fread  freread
              64       4    3633   11564   279385   306151  246089   11449  255943    26844   286849    13319    13077  183884   283217
              64       8   11261   12874   270108   232652  271200   12769  225423    22599   254006    12251    12846  231050   279676
              64      16   11212   13138   219344   255943  269025   13239  267684    21790   265565    13716    13648  225992   256923
              64      32   12246   14601   252810   297994  257169   13223  264519    18269   254006    14834    15266  280847   227718
              64      64   11406   14953   310399   315136  261173   15069  260160    15213   300328    14904    13349  189331   191083
             128       4   19512   19707   473930   579270  516318   19514  509943    42809   524900    20638    20641  505620   615109
             128       8   19692   21039   514339   482881  540217   20611  509943    44366   526444    20565    20836  535903   556454
             128      16   19743   22058   529038   659704  566435   20645  524900    42809   526961    20668    20799  571257   518312
             128      32   20649   20816   556454   535903  490380   21921  400110    36209   540217    21996    20718  498114   537512
             128      64   20751   20668   481150   551878  531131   21440  353482    29390   606767    21891    21771  526961   481150
             128     128   19598   21031   592699   566435  377597   21895  427851    20661   447464    20802    21432  479432   455436
             256       4   28972   33499   850282   947860  965763   32862  879535    91329   977189    31269    32632  826078   870268
             256       8   28949   31816  1012194  1008392  987979   31710  861885   111455  1048775    32774    31307  812944   839644
             256      16   27984   32184  1112909   689708  980760   28760  988889    89071  1066483    30440    29714  131091   687940
             256      32   26756   30428   885337   891956  937924   27260  542347    43634   593947    29774    27935  708831   842278
             256      64   25892   30274   850282   273230  638445   28660  757326    59300  1099237    18278    29753  663292   679237
             256     128   25728   30684   742146  1016025 1007446   28900  924200    41376   980760    27990    27420  563997   856386
             256     256   25960   28256   962301  1023775  996229   28510  879535    28552   873809    27556    27291  797250   930608
             512       4   37249   37948  1471074  1610042 1605228   35616 1078159   174865  1207261    37668    36232 1196499  1038532
             512       8   36332   35126  1350783  1580419 1340664   34911 1248678   176735  1652157    36587    35550 1236455  1523247
             512      16   35310   36723  1283761  1492545 1541840   35644 1501940   176547  1707325    35789    35384 1336492  1261144
             512      32   31424   37844  1546280  1647088  942786   34327 1594501   142379  1463057    35892    34979 1437592  1635797
             512      64   34587   35054  1410215  1635797 1778004   34879 1421416   117375  1869318    35689    34667 1210664  1365383
             512     128   33954   35726  1585086  1599251 1270846   34011 1492545    87268  1614885    33932    33701 1060063  1438555
             512     256   33862   34438  1446306  1410215 1518938   34796 1084694    54742  1471074    33567    33635  907717  1130370
             512     512   32348   34459   942786  1094088  960496   33918 1176828    34309  1261144    32943    33442  927315  1242896
            1024       4   39723   39383  1516688  1352402 1590254   40188 1563622   270127  1664841    40015    39827 1571057  1825466
            1024       8   38296   39978  1786736  2306882 2052253   39815 1903961   337076  2107643    39289    38978 1486247  1976691
            1024      16   38216   38955  2160657  2011877 2444759   38411 1726407   306044  2275110    39020    38086 1670669  2387677
            1024      32   37702   39102  1828574  2437821 2375790   38283 1678504   278192  2369237    38523    38167 1875690  1659694
            1024      64   37365   38748  1871603  2279941 2220992   37678 1744641   227045  2869422    38273    37589 1570483  1762539
            1024     128   37766   38256  1659694  2111788 2231377   37549 1758930   162026  2835325    37384    37323 1659694  2197132
            1024     256   36954   37662  1646334  1721563 1838751   37840 1886400   108486  2653170    38236    37050 1579725  2211841
            1024     512   37174   36994  1681790  1800216 1913291   37468 1506051    65318  1744641    36307    36815 1507637  1753186
            1024    1024   35815   37003  1899750  1753902 1854631   36778 1582636    37783  1506051    36845    36664 1667426  1590254
            2048       4   41397   41900  1828499  2378293 2175875   41799 1634681   609872  2074960    42058    42056 1638423  2333076
            2048       8   41353   40881  2142766  2868277 2348384   41167 2013672   675001  2632683    40398    41272 2398213  2608697
            2048      16   40583   41074  2397544  2840769 2964289   40649 2144371   622693  2722809    40511    39898 2197023  2852087
            2048      32   39885   39755  2361944  2556676 2839830   40082 2111168   520450  2491420    40739    39907 2085540  2694623
            2048      64   39663   40284  2144371  2482062 2572756   40006 2208887   389870  2449504    39710    39907 1817281  2599225
            2048     128   39660   39952  2275596  2631876 2470639   40299 2109095   315414  4180412    40074    40148 1967097  2694623
            2048     256   40024   39919  2148662  2464968 2605532   39564 2128958   207117  3180508    39903    39448 1978880  2525852
            2048     512   40084   39287  2008023  2373037 2257653   40211 1930406   133725  2283460    39442    39914 1882186  2162183
            2048    1024   39620   39768  2172024  2275596 2245848   40009 2013672    71683  2461436    37682    37856 1867050  2216296
            2048    2048   39705   39788  2050198  1865023 2001939   39925 1817281    39946  1875611    40103    39266 1716680  2153510
            4096       4   43692   43985  2121284  2595614 2355405   44053 2031724  1027086  1968180    44555    44666 2140045  2426601
            4096       8   45027   44329  2382847  1892096 2615371   43819 2382517  1004153  2505155    44029    43991 2243152  2719708
            4096      16   45150   45206  2552044  2931815 3136268   45102 2221399   835929  2732686    45319    45207 2448388  2721431
            4096      32   44221   45386  2540722  2944881 3310948   45033 2362206   588496  2564999    45326    44435 2131284  2913419
            4096      64   44616   45475  2444208  2862450 3020473   45438 2483786   755863  2850576    44822    45036 2277951  2816923
            4096     128   44335   44553  2412291  2714122 3018351   44767 2455738   581485  2712836    45388    44487 2430721  2696232
            4096     256   44628   44368  2525409  2894765 3040789   43802 2372973   388028  3512686    44176    43394 2108268  2268027
            4096     512   44031   44815  2352824  2500779 2618560   44442 2318218   242698  2890382    44956    45134 2171971  2502236
            4096    1024   44901   44866  2364807  2555081 2583903   45419 2256706   141867  2769246    43526    44364 2016699  2359286
            4096    2048   44389   44625  2221111  2329851 2209400   44567 2088787    78865  2248142    44043    44384 1918508  2221399
            4096    4096   44040   44803  1942148  1997007 1954299   44366 1960768    45149  1980661    44304    44712 2023588  1945888
            8192       4   46895   48238  2526859  2620719 2272949   48085 2221227  1540739  2335204    47751    47733 2354728  2511345
            8192       8   48105   48480  2685024  2871253 2709800   48397 2578629  1609068  2706385    47802    48124 2485548  2829870
            8192      16   47773   48307  2910163  2987594 2989673   48679 2788078  1653675  2892768    47955    48248 2663998  2974661
            8192      32   48155   48068  2672702  2899848 2904996   48601 2738961  1450953  2977755    48036    47751 2552766  2943571
            8192      64   47812   48291  2658022  2815032 2886449   48551 2604824  1352969  2819883    48412    48542 2530767  2752565
            8192     128   48451   48509  2693866  2811347 2873415   48704 2698308  1038409  2747283    48241    48017 2650231  2793064
            8192     256   48449   48184  2662347  2233355 2735036   48676 2653711   723731  2743335    48464    48294 2549735  2725275
            8192     512   47569   48874  2527602  2508411 2474094   48583 2475698   453349  3370979    47710    48624 2462215  2482495
            8192    1024   47770   48351  2483213  2572066 2573800   48603 2280038   266070  3261235    47938    48364 2339178  2535436
            8192    2048   47940   47912  2446785  2473381 2323361   48384 2327926   152293  2813188    48167    48099 2255492  2411581
            8192    4096   47343   48272  1914532  1924828 1907305   48014 1880684    86270  2011834    47003    48084 1913572  1841673
            8192    8192   47771   48369  2148449  2155728 2155863   47931 2066029    48614  2107467    47678    48157 2051596  2087113
           16384       4   49618   49631  2676324  2829265 2150924   49758 2471940  2273386  2411564    49758    49842 2623501  2635777
           16384       8   50096   49967  2936252  3066491 2741125   50051 2744299  2520261  2777015    50058    49525 2865364  2992512
           16384      16   50075   49626  3129187  3275505 3066901   50192 2988738  2456389  3133325    49978    49842 2818011  3256722
           16384      32   49717   50298  3078028  3204331 3100107   50493 2980054  2394256  3170184    50369    50535 3038022  3115991
           16384      64   50073   50272  3035204  3130898 3066354   50219 2914212  2076003  3075136    50349    49792 3022389  3086046
           16384     128   50095   50555  3067586  3154323 3123640   50438 3018406  1723035  2757735    50314    49959 2984843  3130327
           16384     256   49898   50247  3000089  3122504 3059528   50151 3010604  1231138  2852282    50151    50202 3017213  2925751
           16384     512   49877   50271  2847908  2915819 2897257   50500 2837091   775284  2756408    49956    49443 2803068  2881464
           16384    1024   49729   50019  2806846  2904481 2869312   49990 2799756   482252  3397109    49692    49621 2764280  2811669
           16384    2048   49690   49970  2430499  2447901 2426209   48961 2357054   288985  3043673    49382    49426 2293110  2439472
           16384    4096   49709   49302  1863689  1854636 1849395   49404 1841959   166962  2046940    49318    49622 1845670  1854035
           16384    8192   49729   49626  2191253  2176402 2175024   49686 2169188    93042  2117063    49276    49667 2167204  2187486
           16384   16384   49912   50097  2181307  2213486 2212560   50310 2175850    50438  2205105    50179    50011 2221285  2194472
           32768       4   48956   49576  2865591  2947258 2316719   49745 2554636  2586268  2399347    49165    49464 2788271  2837314
           32768       8   49994   49732  3093325  3214434 2673399   49934 2842007  2763158  2845184    49657    49475 3067025  3169000
           32768      16   49836   49780  3206260  3201555 3020981   49851 3120151  3433415  3100373    49877    49797 3220082  3315312
           32768      32   49761   49672  3237910  3314273 3104505   49898 3065588  3019521  3282374    50261    51005 3316992  3237681
           32768      64   49672   50273  3307573  3424006 3316592   49711 3308289  2891393  3355950    50065    49545 3347368  3432986
           32768     128   49312   49540  3388968  3507902 3447453   50052 3219856  2399012  3397429    50028    51525 3374987  3457687
           32768     256   49659   49990  3304233  3396757 3307573   49784 3293228  1921986  3178896    49832    49828 3329044  3279085
           32768     512   49977   49799  3047575  3092212 3063880   49993 3024038  1250743  3063607    49844    49605 2957405  3061832
           32768    1024   49427   49841  3067299  3069011 3051906   50069 2950232   839169  3021446    48976    50168 2989505  3089570
           32768    2048   49466   49757  2466697  2491289 2337404   50337 2413843   560232  3309883    49497    49805 2411006  2462454
           32768    4096   49125   50871  1742428  1822174 1829889   49796 1786689   316963  2110134    49260    49617 1779495  1816802
           32768    8192   50916   50075  2261408  2208677 2263792   49822 2247136   174951  2138069    48959    49283 2251333  2195517
           32768   16384   49598   50059  2269249  2245925 2260962   49432 2238390    98128  2211342    48630    49363 2249932  2255027
           65536       4   49837   50969  2963553  3011212 2290595   50676 2622485  2475779  2433650    50749    50870 2885529  2925203
           65536       8   50863   51272  3267307  3456027 2852856   50795 3090154  3241950  2957527    51348    50899 3288492  3363745
           65536      16   50829   51465  3543665  3563280 3235235   50939 3384245  3534643  3284014    51327    50590 3527068  3588071
           65536      32   50791   51183  3594547  3682429 3434222   51045 3495270  3665976  3511389    50993    50900 2650375  3008871
           65536      64   50067   51072  3348094  3494515 3369972   51169 3380416  3435509  3431392    51177    51290 3504182  3582180
           65536     128   50862   51072  3451644  3688012 3585310   51531 3552871  3131020  3440928    51014    51179 3185667  3612213
           65536     256   51055   51445  3430835  3488351 3352749   51021 3446018  2422945  3469156    51026    50947 3309397  3451470
           65536     512   50859   50916  3115723  3130770 3119896   51128 2958068  1780184  3099492    50056    51077 3103622  3130627
           65536    1024   51282   51117  3171187  3180912 3134483   50914 3130449  1385684  3131947    50524    50987 3153470  3173164
           65536    2048   50880   51233  3047906  3025963 3056582   51222 3001282   958885  3039010    50833    50547 3039985  3058589
           65536    4096   50649   50834  2376565  2351739 2361822   50847 2349970   555064  2246619    50183    50311 2338236  2340665
           65536    8192   50794   50880  2302896  2319609 2320196   50801 2321901   337990  2244307    50164    50564 2263919  2319863
           65536   16384   50710   51100  2261330  2311028 2331987   50708 2307536   179530  2252418    50288    50508 2167775  2241855
          131072       4   50915   51473  3004231  3113356 2266895   50789 2733175  2622232  2405609    50249    51143 2949083  2996274
          131072       8   50883   51386  3445560  3481145 2850250   51252 3164156  3670157  2900201    51297    51267 3373794  3406237
          131072      16   51339   50981  3611876  3689987 3276396   51265 3429590  4208727  3288154    51440    51249 3560760  3600168
          131072      32   51360   51855  3657022  3739458 3484013   51786 3545466  4073447  3488191    51430    51706 3633816  3726076
          131072      64   51422   51611  3572422  3671897 3528083   51726 3496555  3676120  3520131    51331    51607 3578957  3669838
          131072     128   51619   51351  3699373  3790718 3725849   51684 3643401  3840476  3690929    51308    51143 3693408  3782398
          131072     256   51201   51274  2758837  2894322 2814702   51782 2858951  3204698  2872245    51265    51501 2827077  2887118
          131072     512   51408   51807  3276318  3288646 3270588   51658 3238986  2228395  3243228    51378    51309 3229017  3266584
          131072    1024   51465   51362  3218394  3234356 3225115   51731 3198210  1857071  3218940    51429    51078 3175653  3224718
          131072    2048   51128   51490  3065715  3140819 3150394   51374 3069087  1387754  3090151    51097    51306 3077747  3064297
          131072    4096   51196   51415  2365448  2379794 2379196   51445 2378630   733655  2395149    51022    51119 2378023  2378538
          131072    8192   51344   51279  2363059  2339487 2338234   51525 2340483   523274  2257336    51025    51230 2334233  2331580
          131072   16384   51431   51447  2376091  2332994 2350651   51589 2287029   324675  2269881    50901    51098 2339567  2344836
          262144       4   50304   51436  3115012  3171932 2283125   51081 2755786  3098701  2422862    51384    51383 3004722  3038258
          262144       8   51291   51715  3341241  3415960 2761185   51397 3077598  3406055  2882227    51732    51685 3392436  3391787
          262144      16   51534   51817  3678135  3793200 3316759   51563 3113830  4368119  3215540    51831    51724 3576941  3661074
          262144      32   51669   51804  3651748  3725480 3455358   51763 3583796  3308734  3497777    51901    51938 3639070  3726655
          262144      64   51623   51806  3611542  3709668 3572942   52059 3600390  2454481  3580948    51834    51513 3596033  3680868
          262144     128   51552   51514  3705742  3837511 3768499   51889 3729891  4212368  3778496    51523    51912 3745456  3831227
          262144     256   51458   51901  3701500  3805976 3765737   51761 3643169  1994297  3717306    51377    51548 3605880  3688054
          262144     512   51581   51809  3251801  3267078 3273078   51696 3224603  1996267  3254997    51594    51595 3240101  3295880
          262144    1024   51567   51822  3236944  3278690 3262647   51784 3212111  1931377  3235543    51527    51523 3208306  3221192
          262144    2048   51441   51645  3048712  3099103 3000393   51658 3038678  1562799  3102364    51145    51139 3103915  3160953
          262144    4096   51241   51604  2379772  2415092 2409519   51434 2366689  1033671  2417275    51036    51244 2381545  2389189
          262144    8192   51446   51496  2372025  2369704 2367092   51580 2346141   791070  2247498    50986    51382 2316781  2354829
          262144   16384   51082   51393  2382608  2288128 2296890   51479 2296405   549164  2250875    50911    51271 2345050  2339755
          524288       4   54170   67341  3119775  3207636 2210116   54022 2658943  2869102  2417521    54650    54808 2994631  3043905
          524288       8   54435   55070  3323600  3440323 2712864   54436 3054683  3728663  2893566    54761    55029 3326637  3420928
          524288      16   54588   54998  3470270  3635814 3105865   54713 3336758  4257145  3253152    54889    54949 3458661  3559494
          524288      32   54540   55012  3608583  3774357 3502048   54689 3557824  3599045  3554472    54865    54924 3681594  3753734
          524288      64   54814   55122  3559103  3793029 3647755   54902 3661738  3273506  3639906    54670    55031 3697870  3776257
          524288     128   54687   55201  3728751  3847306 3772234   54731 3756023  3897907  3757987    54672    54972 3816332  3835910
          524288     256   55006   55195  3529416  3665681 3630831   54773 3503331  3610621  3509034    54531    54538 3476915  3580859
          524288     512   54727   55249  3248112  3303871 3280964   54999 3222938  2265497  3334972    54608    54920 3261630  3309938
          524288    1024   54659   62706  2756090  2795588 2790310   54954 2755047  2233121  2775921    54482    54807 2733271  2787519
          524288    2048   54450   66494  3072768  3089024 3098076   54731 3059145  1983731  3074607    54601    54588 3115364  3133052
          524288    4096   54556   55165  2407208  2404560 2407509   54579 2388620  1291658  2409213    54194    54687 2379849  2420110
          524288    8192   54669   67141  2381277  2357770 2356160   64169 2353706  1084815  2338817    54760    54544 2330076  2362199
          524288   16384   54190   54520  1903290  1911624 1905767   54474 1880381   807483  1890062    54245    54300 1858729  1873192

iozone test complete.
Excel output is below:

"Writer report"
        "4"  "8"  "16"  "32"  "64"  "128"  "256"  "512"  "1024"  "2048"  "4096"  "8192"  "16384"
"64"   3633  11261  11212  12246  11406
"128"   19512  19692  19743  20649  20751  19598
"256"   28972  28949  27984  26756  25892  25728  25960
"512"   37249  36332  35310  31424  34587  33954  33862  32348
"1024"   39723  38296  38216  37702  37365  37766  36954  37174  35815
"2048"   41397  41353  40583  39885  39663  39660  40024  40084  39620  39705
"4096"   43692  45027  45150  44221  44616  44335  44628  44031  44901  44389  44040
"8192"   46895  48105  47773  48155  47812  48451  48449  47569  47770  47940  47343  47771
"16384"   49618  50096  50075  49717  50073  50095  49898  49877  49729  49690  49709  49729  49912
"32768"   48956  49994  49836  49761  49672  49312  49659  49977  49427  49466  49125  50916  49598
"65536"   49837  50863  50829  50791  50067  50862  51055  50859  51282  50880  50649  50794  50710
"131072"   50915  50883  51339  51360  51422  51619  51201  51408  51465  51128  51196  51344  51431
"262144"   50304  51291  51534  51669  51623  51552  51458  51581  51567  51441  51241  51446  51082
"524288"   54170  54435  54588  54540  54814  54687  55006  54727  54659  54450  54556  54669  54190

"Re-writer report"
        "4"  "8"  "16"  "32"  "64"  "128"  "256"  "512"  "1024"  "2048"  "4096"  "8192"  "16384"
"64"   11564  12874  13138  14601  14953
"128"   19707  21039  22058  20816  20668  21031
"256"   33499  31816  32184  30428  30274  30684  28256
"512"   37948  35126  36723  37844  35054  35726  34438  34459
"1024"   39383  39978  38955  39102  38748  38256  37662  36994  37003
"2048"   41900  40881  41074  39755  40284  39952  39919  39287  39768  39788
"4096"   43985  44329  45206  45386  45475  44553  44368  44815  44866  44625  44803
"8192"   48238  48480  48307  48068  48291  48509  48184  48874  48351  47912  48272  48369
"16384"   49631  49967  49626  50298  50272  50555  50247  50271  50019  49970  49302  49626  50097
"32768"   49576  49732  49780  49672  50273  49540  49990  49799  49841  49757  50871  50075  50059
"65536"   50969  51272  51465  51183  51072  51072  51445  50916  51117  51233  50834  50880  51100
"131072"   51473  51386  50981  51855  51611  51351  51274  51807  51362  51490  51415  51279  51447
"262144"   51436  51715  51817  51804  51806  51514  51901  51809  51822  51645  51604  51496  51393
"524288"   67341  55070  54998  55012  55122  55201  55195  55249  62706  66494  55165  67141  54520

"Reader report"
        "4"  "8"  "16"  "32"  "64"  "128"  "256"  "512"  "1024"  "2048"  "4096"  "8192"  "16384"
"64"   279385  270108  219344  252810  310399
"128"   473930  514339  529038  556454  481150  592699
"256"   850282  1012194  1112909  885337  850282  742146  962301
"512"   1471074  1350783  1283761  1546280  1410215  1585086  1446306  942786
"1024"   1516688  1786736  2160657  1828574  1871603  1659694  1646334  1681790  1899750
"2048"   1828499  2142766  2397544  2361944  2144371  2275596  2148662  2008023  2172024  2050198
"4096"   2121284  2382847  2552044  2540722  2444208  2412291  2525409  2352824  2364807  2221111  1942148
"8192"   2526859  2685024  2910163  2672702  2658022  2693866  2662347  2527602  2483213  2446785  1914532  2148449
"16384"   2676324  2936252  3129187  3078028  3035204  3067586  3000089  2847908  2806846  2430499  1863689  2191253  2181307
"32768"   2865591  3093325  3206260  3237910  3307573  3388968  3304233  3047575  3067299  2466697  1742428  2261408  2269249
"65536"   2963553  3267307  3543665  3594547  3348094  3451644  3430835  3115723  3171187  3047906  2376565  2302896  2261330
"131072"   3004231  3445560  3611876  3657022  3572422  3699373  2758837  3276318  3218394  3065715  2365448  2363059  2376091
"262144"   3115012  3341241  3678135  3651748  3611542  3705742  3701500  3251801  3236944  3048712  2379772  2372025  2382608
"524288"   3119775  3323600  3470270  3608583  3559103  3728751  3529416  3248112  2756090  3072768  2407208  2381277  1903290

"Re-Reader report"
        "4"  "8"  "16"  "32"  "64"  "128"  "256"  "512"  "1024"  "2048"  "4096"  "8192"  "16384"
"64"   306151  232652  255943  297994  315136
"128"   579270  482881  659704  535903  551878  566435
"256"   947860  1008392  689708  891956  273230  1016025  1023775
"512"   1610042  1580419  1492545  1647088  1635797  1599251  1410215  1094088
"1024"   1352402  2306882  2011877  2437821  2279941  2111788  1721563  1800216  1753902
"2048"   2378293  2868277  2840769  2556676  2482062  2631876  2464968  2373037  2275596  1865023
"4096"   2595614  1892096  2931815  2944881  2862450  2714122  2894765  2500779  2555081  2329851  1997007
"8192"   2620719  2871253  2987594  2899848  2815032  2811347  2233355  2508411  2572066  2473381  1924828  2155728
"16384"   2829265  3066491  3275505  3204331  3130898  3154323  3122504  2915819  2904481  2447901  1854636  2176402  2213486
"32768"   2947258  3214434  3201555  3314273  3424006  3507902  3396757  3092212  3069011  2491289  1822174  2208677  2245925
"65536"   3011212  3456027  3563280  3682429  3494515  3688012  3488351  3130770  3180912  3025963  2351739  2319609  2311028
"131072"   3113356  3481145  3689987  3739458  3671897  3790718  2894322  3288646  3234356  3140819  2379794  2339487  2332994
"262144"   3171932  3415960  3793200  3725480  3709668  3837511  3805976  3267078  3278690  3099103  2415092  2369704  2288128
"524288"   3207636  3440323  3635814  3774357  3793029  3847306  3665681  3303871  2795588  3089024  2404560  2357770  1911624

"Random read report"
        "4"  "8"  "16"  "32"  "64"  "128"  "256"  "512"  "1024"  "2048"  "4096"  "8192"  "16384"
"64"   246089  271200  269025  257169  261173
"128"   516318  540217  566435  490380  531131  377597
"256"   965763  987979  980760  937924  638445  1007446  996229
"512"   1605228  1340664  1541840  942786  1778004  1270846  1518938  960496
"1024"   1590254  2052253  2444759  2375790  2220992  2231377  1838751  1913291  1854631
"2048"   2175875  2348384  2964289  2839830  2572756  2470639  2605532  2257653  2245848  2001939
"4096"   2355405  2615371  3136268  3310948  3020473  3018351  3040789  2618560  2583903  2209400  1954299
"8192"   2272949  2709800  2989673  2904996  2886449  2873415  2735036  2474094  2573800  2323361  1907305  2155863
"16384"   2150924  2741125  3066901  3100107  3066354  3123640  3059528  2897257  2869312  2426209  1849395  2175024  2212560
"32768"   2316719  2673399  3020981  3104505  3316592  3447453  3307573  3063880  3051906  2337404  1829889  2263792  2260962
"65536"   2290595  2852856  3235235  3434222  3369972  3585310  3352749  3119896  3134483  3056582  2361822  2320196  2331987
"131072"   2266895  2850250  3276396  3484013  3528083  3725849  2814702  3270588  3225115  3150394  2379196  2338234  2350651
"262144"   2283125  2761185  3316759  3455358  3572942  3768499  3765737  3273078  3262647  3000393  2409519  2367092  2296890
"524288"   2210116  2712864  3105865  3502048  3647755  3772234  3630831  3280964  2790310  3098076  2407509  2356160  1905767

"Random write report"
        "4"  "8"  "16"  "32"  "64"  "128"  "256"  "512"  "1024"  "2048"  "4096"  "8192"  "16384"
"64"   11449  12769  13239  13223  15069
"128"   19514  20611  20645  21921  21440  21895
"256"   32862  31710  28760  27260  28660  28900  28510
"512"   35616  34911  35644  34327  34879  34011  34796  33918
"1024"   40188  39815  38411  38283  37678  37549  37840  37468  36778
"2048"   41799  41167  40649  40082  40006  40299  39564  40211  40009  39925
"4096"   44053  43819  45102  45033  45438  44767  43802  44442  45419  44567  44366
"8192"   48085  48397  48679  48601  48551  48704  48676  48583  48603  48384  48014  47931
"16384"   49758  50051  50192  50493  50219  50438  50151  50500  49990  48961  49404  49686  50310
"32768"   49745  49934  49851  49898  49711  50052  49784  49993  50069  50337  49796  49822  49432
"65536"   50676  50795  50939  51045  51169  51531  51021  51128  50914  51222  50847  50801  50708
"131072"   50789  51252  51265  51786  51726  51684  51782  51658  51731  51374  51445  51525  51589
"262144"   51081  51397  51563  51763  52059  51889  51761  51696  51784  51658  51434  51580  51479
"524288"   54022  54436  54713  54689  54902  54731  54773  54999  54954  54731  54579  64169  54474

"Backward read report"
        "4"  "8"  "16"  "32"  "64"  "128"  "256"  "512"  "1024"  "2048"  "4096"  "8192"  "16384"
"64"   255943  225423  267684  264519  260160
"128"   509943  509943  524900  400110  353482  427851
"256"   879535  861885  988889  542347  757326  924200  879535
"512"   1078159  1248678  1501940  1594501  1421416  1492545  1084694  1176828
"1024"   1563622  1903961  1726407  1678504  1744641  1758930  1886400  1506051  1582636
"2048"   1634681  2013672  2144371  2111168  2208887  2109095  2128958  1930406  2013672  1817281
"4096"   2031724  2382517  2221399  2362206  2483786  2455738  2372973  2318218  2256706  2088787  1960768
"8192"   2221227  2578629  2788078  2738961  2604824  2698308  2653711  2475698  2280038  2327926  1880684  2066029
"16384"   2471940  2744299  2988738  2980054  2914212  3018406  3010604  2837091  2799756  2357054  1841959  2169188  2175850
"32768"   2554636  2842007  3120151  3065588  3308289  3219856  3293228  3024038  2950232  2413843  1786689  2247136  2238390
"65536"   2622485  3090154  3384245  3495270  3380416  3552871  3446018  2958068  3130449  3001282  2349970  2321901  2307536
"131072"   2733175  3164156  3429590  3545466  3496555  3643401  2858951  3238986  3198210  3069087  2378630  2340483  2287029
"262144"   2755786  3077598  3113830  3583796  3600390  3729891  3643169  3224603  3212111  3038678  2366689  2346141  2296405
"524288"   2658943  3054683  3336758  3557824  3661738  3756023  3503331  3222938  2755047  3059145  2388620  2353706  1880381

"Record rewrite report"
        "4"  "8"  "16"  "32"  "64"  "128"  "256"  "512"  "1024"  "2048"  "4096"  "8192"  "16384"
"64"   26844  22599  21790  18269  15213
"128"   42809  44366  42809  36209  29390  20661
"256"   91329  111455  89071  43634  59300  41376  28552
"512"   174865  176735  176547  142379  117375  87268  54742  34309
"1024"   270127  337076  306044  278192  227045  162026  108486  65318  37783
"2048"   609872  675001  622693  520450  389870  315414  207117  133725  71683  39946
"4096"   1027086  1004153  835929  588496  755863  581485  388028  242698  141867  78865  45149
"8192"   1540739  1609068  1653675  1450953  1352969  1038409  723731  453349  266070  152293  86270  48614
"16384"   2273386  2520261  2456389  2394256  2076003  1723035  1231138  775284  482252  288985  166962  93042  50438
"32768"   2586268  2763158  3433415  3019521  2891393  2399012  1921986  1250743  839169  560232  316963  174951  98128
"65536"   2475779  3241950  3534643  3665976  3435509  3131020  2422945  1780184  1385684  958885  555064  337990  179530
"131072"   2622232  3670157  4208727  4073447  3676120  3840476  3204698  2228395  1857071  1387754  733655  523274  324675
"262144"   3098701  3406055  4368119  3308734  2454481  4212368  1994297  1996267  1931377  1562799  1033671  791070  549164
"524288"   2869102  3728663  4257145  3599045  3273506  3897907  3610621  2265497  2233121  1983731  1291658  1084815  807483

"Stride read report"
        "4"  "8"  "16"  "32"  "64"  "128"  "256"  "512"  "1024"  "2048"  "4096"  "8192"  "16384"
"64"   286849  254006  265565  254006  300328
"128"   524900  526444  526961  540217  606767  447464
"256"   977189  1048775  1066483  593947  1099237  980760  873809
"512"   1207261  1652157  1707325  1463057  1869318  1614885  1471074  1261144
"1024"   1664841  2107643  2275110  2369237  2869422  2835325  2653170  1744641  1506051
"2048"   2074960  2632683  2722809  2491420  2449504  4180412  3180508  2283460  2461436  1875611
"4096"   1968180  2505155  2732686  2564999  2850576  2712836  3512686  2890382  2769246  2248142  1980661
"8192"   2335204  2706385  2892768  2977755  2819883  2747283  2743335  3370979  3261235  2813188  2011834  2107467
"16384"   2411564  2777015  3133325  3170184  3075136  2757735  2852282  2756408  3397109  3043673  2046940  2117063  2205105
"32768"   2399347  2845184  3100373  3282374  3355950  3397429  3178896  3063607  3021446  3309883  2110134  2138069  2211342
"65536"   2433650  2957527  3284014  3511389  3431392  3440928  3469156  3099492  3131947  3039010  2246619  2244307  2252418
"131072"   2405609  2900201  3288154  3488191  3520131  3690929  2872245  3243228  3218940  3090151  2395149  2257336  2269881
"262144"   2422862  2882227  3215540  3497777  3580948  3778496  3717306  3254997  3235543  3102364  2417275  2247498  2250875
"524288"   2417521  2893566  3253152  3554472  3639906  3757987  3509034  3334972  2775921  3074607  2409213  2338817  1890062

"Fwrite report"
        "4"  "8"  "16"  "32"  "64"  "128"  "256"  "512"  "1024"  "2048"  "4096"  "8192"  "16384"
"64"   13319  12251  13716  14834  14904
"128"   20638  20565  20668  21996  21891  20802
"256"   31269  32774  30440  29774  18278  27990  27556
"512"   37668  36587  35789  35892  35689  33932  33567  32943
"1024"   40015  39289  39020  38523  38273  37384  38236  36307  36845
"2048"   42058  40398  40511  40739  39710  40074  39903  39442  37682  40103
"4096"   44555  44029  45319  45326  44822  45388  44176  44956  43526  44043  44304
"8192"   47751  47802  47955  48036  48412  48241  48464  47710  47938  48167  47003  47678
"16384"   49758  50058  49978  50369  50349  50314  50151  49956  49692  49382  49318  49276  50179
"32768"   49165  49657  49877  50261  50065  50028  49832  49844  48976  49497  49260  48959  48630
"65536"   50749  51348  51327  50993  51177  51014  51026  50056  50524  50833  50183  50164  50288
"131072"   50249  51297  51440  51430  51331  51308  51265  51378  51429  51097  51022  51025  50901
"262144"   51384  51732  51831  51901  51834  51523  51377  51594  51527  51145  51036  50986  50911
"524288"   54650  54761  54889  54865  54670  54672  54531  54608  54482  54601  54194  54760  54245

"Re-Fwrite report"
        "4"  "8"  "16"  "32"  "64"  "128"  "256"  "512"  "1024"  "2048"  "4096"  "8192"  "16384"
"64"   13077  12846  13648  15266  13349
"128"   20641  20836  20799  20718  21771  21432
"256"   32632  31307  29714  27935  29753  27420  27291
"512"   36232  35550  35384  34979  34667  33701  33635  33442
"1024"   39827  38978  38086  38167  37589  37323  37050  36815  36664
"2048"   42056  41272  39898  39907  39907  40148  39448  39914  37856  39266
"4096"   44666  43991  45207  44435  45036  44487  43394  45134  44364  44384  44712
"8192"   47733  48124  48248  47751  48542  48017  48294  48624  48364  48099  48084  48157
"16384"   49842  49525  49842  50535  49792  49959  50202  49443  49621  49426  49622  49667  50011
"32768"   49464  49475  49797  51005  49545  51525  49828  49605  50168  49805  49617  49283  49363
"65536"   50870  50899  50590  50900  51290  51179  50947  51077  50987  50547  50311  50564  50508
"131072"   51143  51267  51249  51706  51607  51143  51501  51309  51078  51306  51119  51230  51098
"262144"   51383  51685  51724  51938  51513  51912  51548  51595  51523  51139  51244  51382  51271
"524288"   54808  55029  54949  54924  55031  54972  54538  54920  54807  54588  54687  54544  54300

"Fread report"
        "4"  "8"  "16"  "32"  "64"  "128"  "256"  "512"  "1024"  "2048"  "4096"  "8192"  "16384"
"64"   183884  231050  225992  280847  189331
"128"   505620  535903  571257  498114  526961  479432
"256"   826078  812944  131091  708831  663292  563997  797250
"512"   1196499  1236455  1336492  1437592  1210664  1060063  907717  927315
"1024"   1571057  1486247  1670669  1875690  1570483  1659694  1579725  1507637  1667426
"2048"   1638423  2398213  2197023  2085540  1817281  1967097  1978880  1882186  1867050  1716680
"4096"   2140045  2243152  2448388  2131284  2277951  2430721  2108268  2171971  2016699  1918508  2023588
"8192"   2354728  2485548  2663998  2552766  2530767  2650231  2549735  2462215  2339178  2255492  1913572  2051596
"16384"   2623501  2865364  2818011  3038022  3022389  2984843  3017213  2803068  2764280  2293110  1845670  2167204  2221285
"32768"   2788271  3067025  3220082  3316992  3347368  3374987  3329044  2957405  2989505  2411006  1779495  2251333  2249932
"65536"   2885529  3288492  3527068  2650375  3504182  3185667  3309397  3103622  3153470  3039985  2338236  2263919  2167775
"131072"   2949083  3373794  3560760  3633816  3578957  3693408  2827077  3229017  3175653  3077747  2378023  2334233  2339567
"262144"   3004722  3392436  3576941  3639070  3596033  3745456  3605880  3240101  3208306  3103915  2381545  2316781  2345050
"524288"   2994631  3326637  3458661  3681594  3697870  3816332  3476915  3261630  2733271  3115364  2379849  2330076  1858729

"Re-Fread report"
        "4"  "8"  "16"  "32"  "64"  "128"  "256"  "512"  "1024"  "2048"  "4096"  "8192"  "16384"
"64"   283217  279676  256923  227718  191083
"128"   615109  556454  518312  537512  481150  455436
"256"   870268  839644  687940  842278  679237  856386  930608
"512"   1038532  1523247  1261144  1635797  1365383  1438555  1130370  1242896
"1024"   1825466  1976691  2387677  1659694  1762539  2197132  2211841  1753186  1590254
"2048"   2333076  2608697  2852087  2694623  2599225  2694623  2525852  2162183  2216296  2153510
"4096"   2426601  2719708  2721431  2913419  2816923  2696232  2268027  2502236  2359286  2221399  1945888
"8192"   2511345  2829870  2974661  2943571  2752565  2793064  2725275  2482495  2535436  2411581  1841673  2087113
"16384"   2635777  2992512  3256722  3115991  3086046  3130327  2925751  2881464  2811669  2439472  1854035  2187486  2194472
"32768"   2837314  3169000  3315312  3237681  3432986  3457687  3279085  3061832  3089570  2462454  1816802  2195517  2255027
"65536"   2925203  3363745  3588071  3008871  3582180  3612213  3451470  3130627  3173164  3058589  2340665  2319863  2241855
"131072"   2996274  3406237  3600168  3726076  3669838  3782398  2887118  3266584  3224718  3064297  2378538  2331580  2344836
"262144"   3038258  3391787  3661074  3726655  3680868  3831227  3688054  3295880  3221192  3160953  2389189  2354829  2339755
"524288"   3043905  3420928  3559494  3753734  3776257  3835910  3580859  3309938  2787519  3133052  2420110  2362199  1873192
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