PE 1800 PERC4/SC write performance

Matthew DeJong mdejong at dejonginc.com
Sat Apr 29 15:33:55 CDT 2006


Sorry, The subject started with a discussion of RHEL 4.  I am using the
2.6.9-22ELsmp Kernel.

-----Original Message-----
From: David Hubbard [mailto:dhubbard at dino.hostasaurus.com] 
Sent: Saturday, April 29, 2006 4:30 PM
To: Matthew DeJong; linux-poweredge at dell.com
Subject: RE: PE 1800 PERC4/SC write performance

Which version of linux is this?

David 

> -----Original Message-----
> From: linux-poweredge-bounces at dell.com 
> [mailto:linux-poweredge-bounces at dell.com] On Behalf Of Matthew DeJong
> Sent: Saturday, April 29, 2006 4:20 PM
> To: linux-poweredge at dell.com
> Subject: PE 1800 PERC4/SC write performance
> 
> Here is the apples to apples comparison.  Overall it is fairly similar

> to your results.  It seems like the speed is dropping off severely 
> when it reaches the 2GB test. Anyway, I first noticed the issue 
> because I am running Vmware GSX 3.2 and logs for the Virtual machine 
> files show RW times in the 20-30 seconds for a command that will 
> read/write less than 10 KB at random times.  Vmware support was 
> pointing the finger at the RW tests that I was performing.  Anyway, I 
> am going to check into the hard drive type when I get back into the 
> office.
> 
> Iozone took a little over 40 minuets to complete.
> 	Iozone: Performance Test of File I/O
> 	        Version $Revision: 3.263 $
> 		Compiled for 32 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, 
> 	             Jean-Marc Zucconi, Jeff Blomberg,
> 	             Erik Habbinga, Kris Strecker, Walter Wong.
> 
> 	Run began: Sat Apr 29 14:56:59 2006
> 
> 	Using minimum file size of 524288 kilobytes.
> 	Using maximum file size of 2097152 kilobytes.
> 	Auto Mode
> 	Cross over of record size disabled.
> 	Command line used: ./iozone -n 512m -g 2g -f test.out -az -i0
> -i1
> 	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
>           524288       4  264576  646898  1492711  1520397
> 
>           524288       8  289154  660507  1666374  1726942
> 
>           524288      16  300149  699894  1944507  1966867
> 
>           524288      32  293641  718210  1966749  2045977
> 
>           524288      64  301815  741746  2090454  2138832
> 
>           524288     128  311868  746704  2011726  2168424
> 
>           524288     256  312476  761608  2099351  2190201
> 
>           524288     512  312461  722570  1965237  2144274
> 
>           524288    1024  299916  692823  1381126  1399889
> 
>           524288    2048  285049  637515   994801  1001033
> 
>           524288    4096  289618  633259   966112   990276
> 
>           524288    8192  289300  607463   979552   987008
> 
>           524288   16384  280119  620299   973899   981694
> 
>          1048576       4  272353  590367  1530602  1556665
> 
>          1048576       8  283272  627307  1776928  1806307
> 
>          1048576      16  296379  692436  1953259  1984207
> 
>          1048576      32  296698  711043  1972242  2103703
> 
>          1048576      64  305873  737602  2131424  1981623
> 
>          1048576     128  307436  715663  2157777  2079245
> 
>          1048576     256  304777  718732  2179515  2101338
> 
>          1048576     512  306837  717351  2124950  2187532
> 
>          1048576    1024  298214  680887  1380384  1410346
> 
>          1048576    2048  284437  601957   994461   999087
> 
>          1048576    4096  283793  571339   989065   976472
> 
>          1048576    8192  284072  619312   972332   977893
> 
>          1048576   16384  285387  624100   982137   985205
> 
>          2097152       4  121151   56360  1493933  1526728
> 
>          2097152       8   60361   53859  1791923  1809696
> 
>          2097152      16   57554   54448  1967721  1984402
> 
>          2097152      32   55437   58195  2034229  2061926
> 
>          2097152      64   57202   54906  1956913  2154958
> 
>          2097152     128   56152   54857  2020309  2183998
> 
>          2097152     256   55288  129611  2178671  2199473
> 
>          2097152     512   56186   54165  2118198  2136020
> 
>          2097152    1024   57717   53757  1412365  1424924
> 
>          2097152    2048   58967   57279   974913   983324
> 
>          2097152    4096   59840   53600   927708   990505
> 
>          2097152    8192   58139   55658   909564   928544
> 
>          2097152   16384   57764   57490   984673   988934
> 
> 
> iozone test complete.
> 
> ----A smaller random ~ 15 minutes
> 	Iozone: Performance Test of File I/O
> 	        Version $Revision: 3.263 $
> 		Compiled for 32 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, 
> 	             Jean-Marc Zucconi, Jeff Blomberg,
> 	             Erik Habbinga, Kris Strecker, Walter Wong.
> 
> 	Run began: Sat Apr 29 16:00:31 2006
> 
> 	Using minimum file size of 131072 kilobytes.
> 	Using maximum file size of 533504 kilobytes.
> 	Auto Mode
> 	Cross over of record size disabled.
> 	Command line used: ./iozone -n 128m -g 521m -f test.out -az -i0
> -i2
> 	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
>           131072       4  279149  627087                   1055832
> 577208                                                          
>           131072       8  288892  695563                   1351857
> 693513                                                          
>           131072      16  300793  728493                   1540861
> 716471                                                          
>           131072      32  305741  707644                   1741082
> 785336                                                          
>           131072      64  308080  763982                   2002203
> 824066                                                          
>           131072     128  314768  730364                   1888673
> 814587                                                          
>           131072     256  308758  771492                   2073632
> 840414                                                          
>           131072     512  314056  765603                   1907860
> 801193                                                          
>           131072    1024  296494  670140                   1159693
> 716960                                                          
>           131072    2048  277440  646496                    994460
> 690426                                                          
>           131072    4096  272366  636704                    920591
> 673774                                                          
>           131072    8192  291080  637776                    896948
> 660871                                                          
>           131072   16384  286874  626739                    955432
> 681155                                                          
>           262144       4  276603  630402                   1106498
> 608277                                                          
>           262144       8  274610  708193                   1317684
> 692160                                                          
>           262144      16  299394  733024                   1643691
> 769536                                                          
>           262144      32  290253  713229                   1781739
> 779167                                                          
>           262144      64  313339  764446                   1872939
> 788564                                                          
>           262144     128  315516  768987                   2092230
> 850660                                                          
>           262144     256  294805  776161                   2106742
> 855449                                                          
>           262144     512  310725  769592                   1912470
> 799531                                                          
>           262144    1024  289723  670357                   1265192
> 748884                                                          
>           262144    2048  289237  640655                    998427
> 694126                                                          
>           262144    4096  288655  636611                    972589
> 686111                                                          
>           262144    8192  287359  643214                    922766
> 686913                                                          
>           262144   16384  291624  614833                    904602
> 665210                                                          
>           524288       4  271036  646172                   1051418
> 602537                                                          
>           524288       8  276982  666030                   1327311
> 690155                                                          
>           524288      16  289833  712515                   1681396
> 768319                                                          
>           524288      32  303513  734785                   1867255
> 801716                                                          
>           524288      64  308737  746312                   2008466
> 838387                                                          
>           524288     128  311911  742613                   2093008
> 852194                                                          
>           524288     256  312538  723363                   2119063
> 858618                                                          
>           524288     512  304606  716176                   2024254
> 851557                                                          
>           524288    1024  288327  680702                   1313853
> 752823                                                          
>           524288    2048  290180  608996                    984547
> 687097                                                          
>           524288    4096  289745  614119                    930884
> 682693                                                          
>           524288    8192  289700  618890                    928454
> 678414                                                          
>           524288   16384  284951  632242                    961114
> 689191                                                          
> 
> iozone test complete.
> 
> Matt DeJong
> 
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