Re: [SSI-users] Performance Tests

[Roger T. <rog...@gm...>]

Just to follow up here is the same test on the non-server node (remote
CFS).  Again don't trust the numbers too much because technically I'm
suppose to use >2GB filesize and perform the test on a completely idle
cluster.  However this quick test shows remote CFS isn't that much
slower, only about 10% performance hit (random write).

Roger

        Iozone: Performance Test of File I/O
                Version $Revision: 3.226 $
                Compiled for 32 bit mode.
                Build: linux

        Contributors:William Norcott, Don Capps, Isom Crawford, Kirby Colli=
ns
                     Al Slater, Scott Rhine, Mike Wisner, Ken Goss
                     Steve Landherr, Brad Smith, Mark Kelly, Dr. Alain CYR,
                     Randy Dunlap, Mark Montague, Dan Million,
                     Jean-Marc Zucconi, Jeff Blomberg,
                     Erik Habbinga, Kris Strecker.

        Run began: Mon Dec 19 22:40:20 2005

        Auto Mode
        File size set to 81920 KB
        Command line used: /opt/iozone/bin/iozone -a -s 80m
        Output is in Kbytes/sec
        Time Resolution =3D 0.000004 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=20
random    bkwd  record  stride
              KB  reclen   write rewrite    read    reread    read =20
write    read rewrite    read   fwrite frewrite   fread  freread
           81920       4  491271  586567   979401   976586  821334 =20
18933  884864  976236  843284   542901   564797  915359   964593
           81920       8  633981  659937  1151045  1140185 1032896 =20
23723 1087813 1779746 1064530   580692   645501 1128826  1122992
           81920      16  690509  729988  1326294  1360889 1240646 =20
28026 1261043 2204226 1236619   632381   638911 1310363  1325887
           81920      32  708104  744037  1423653  1411635 1375280 =20
30391 1405938 1374313 1385913   604085   682928 1375375  1397859
           81920      64  703973  738829  1417445  1458143 1392864 =20
33424 1367702 1532588 1397475   648373   665854 1433970  1440479
           81920     128  700511  735129  1434398  1423806 1414730 =20
32349 1350943 1578934 1422199   572542   593971 1395354  1417915
           81920     256  633531  670864  1170535  1190837 1170237 =20
32266 1164280 1163437 1164531   447479   470818 1181578  1188278
           81920     512  561045  572663   604794   549193  701507 =20
33016  735632  670925  715246   411082   430946  727997   739918
           81920    1024  558007  584178   704773   733064  734425 =20
37524  698744  638299  633884   295330   437393  731951   731767
           81920    2048  559218  586189   743806   744719  735704 =20
40197  741779  670480  750292   421787   442586  740921   732055
           81920    4096  537194  578706   748893   752305  758601=20
105317  752284  654673  746179   359526   452458  740666   742310
           81920    8192  561796  593038   740808   741029  733773 =20
94732  736444  654135  710303   436946   466015  753696   750224
           81920   16384  543488  583109   729150   743415  740164 =20
38855  738670  638224  726382   401824   411224  760871   757235

iozone test complete.


On 12/19/05, Roger Tsang <rog...@gm...> wrote:
>
> This is what I'm getting on FC3 SSI-1.9.2 preview AMD64 3000+ nodes
> with 2GB RAM each with IDE disks (not raided).  Running the tests at
> the CFS server on DRBD storage (procotol C) with Gigabit ICS (MTU
> 1500) and the filesystem is ext3 (rw,noatime,chard) with failover
> enabled.  Default /proc/sys/vm knobs.
>
> The following is just to give an idea, since there is a certain level
> of buffering going on here.
>
>         Iozone: Performance Test of File I/O
>                 Version $Revision: 3.226 $
>                 Compiled for 32 bit mode.
>                 Build: linux
>
>         Contributors:William Norcott, Don Capps, Isom Crawford, Kirby Col=
lins
>                      Al Slater, Scott Rhine, Mike Wisner, Ken Goss
>                      Steve Landherr, Brad Smith, Mark Kelly, Dr. Alain CY=
R,
>                      Randy Dunlap, Mark Montague, Dan Million,
>                      Jean-Marc Zucconi, Jeff Blomberg,
>                      Erik Habbinga, Kris Strecker.
>
>         Run began: Mon Dec 19 19:28:52 2005
>
>         Auto Mode
>         File size set to 81920 KB
>         Command line used: /opt/iozone/bin/iozone -a -s 80m
>         Output is in Kbytes/sec
>         Time Resolution =3D 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
>            81920       4  592283  619564   988083   980068  878961
> 20679  941683 1586735  898274   548708   592566 1013722  1011595
>            81920       8  667475  696829  1150625  1187178 1076745
> 29790  960869 1083355 1059753   620187   658304 1138362  1167036
>            81920      16  698469  719081  1375325  1385189 1290629
> 35736 1309778 1360550  603942   115238   449226 1201207   537780
>            81920      32  419373  695628  1425044   554109 1414509
> 16313 1423036 2156929 1372745   678662   495718 1323854  1420667
>            81920      64  722640  434416  1421208  1353176 1290444
> 17924 1323576 1510463 1341103   221657   281032 1290404   998561
>            81920     128  684029  781753  1293133  1301826 1327970
> 37276 1300853 1603821 1312924   628143   654124 1319672  1317889
>            81920     256  681287  714472  1061937  1091101 1113102
> 36389  981677 1061138 1081709   326928   482651 1125198  1138187
>            81920     512  363705  365272   720733   738417  735018
> 37955  721412  632064  713837   417016   396106  709902   562062
>            81920    1024  365789  358002   739383   728818  732717
> 43929  732887  581319  726994   424326   444714  735659   412643
>            81920    2048  571919  590733   425885   712323  719789
> 44347  697946  670611  718332   294249   447814  674666   738364
>            81920    4096  559207  591715   730456   730619  739503
> 109754  736915  673545  727609   428350   325316  669850   694349
>            81920    8192  559704  589009   742150   729338  723188
> 102824  742553  663567  714036   445961   474620  744605   730358
>            81920   16384  348019  595041   735355   404941  739103
> 43135  418527  664757  653248   425461   471821  649071   361038
>
> iozone test complete.
>
> Roger
>