Hi!
> TIOBENCH
>
> No size specified, using 1792 MB
> Size is MB, BlkSz is Bytes, Read, Write, and Seeks are MB/sec
>
> File Block Num Seq Read Rand Read Seq Write Rand Write
> Dir Size Size Thr Rate (CPU%) Rate (CPU%) Rate (CPU%) Rate (CPU%)
> ------- ------ ------- --- ----------- ----------- ----------- -----------
> . 1792 4096 1 153.6 98.1% 0.897 0.91% 85.59 51.2% 3.399 1.95%
> . 1792 4096 2 104.7 67.8% 1.080 1.00% 79.63 58.4% 3.437 3.29%
> . 1792 4096 4 91.57 61.2% 1.292 1.24% 76.45 59.3% 3.471 3.40%
> . 1792 4096 8 83.55 57.3% 1.480 1.39% 73.80 59.2% 3.455 3.26%
>
>
> File './Bonnie.1089', size: 1073741824, volumes: 1
> Writing with putc()... done: 9854 kB/s 100.0 %CPU
> Rewriting... done: 65537 kB/s 52.2 %CPU
> Writing intelligently...done: 109124 kB/s 51.0 %CPU
> Reading with getc()... done: 9821 kB/s 99.9 %CPU
> Reading intelligently...done: 167240 kB/s 97.6 %CPU
> Seeker 1...Seeker 2...Seeker 3...start 'em...done...done...done...
> ---Sequential Output (nosync)--- ---Sequential Input-- --Rnd Seek-
> -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --04k (03)-
> Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
> 1*1024 9854 100.0 109124 51.0 65537 52.2 9821 99.9 167240 97.6 1504.4
> 6.4
>
> hdparm -t /dev/md0
>
> /dev/md0:
> Timing buffered disk reads: 64 MB in 0.47 seconds =136.17 MB/sec
>
>
> hde: 39102336 sectors (20020 MB) w/2048KiB Cache, CHS=38792/16/63, UDMA(100)
> hdg: 39102336 sectors (20020 MB) w/2048KiB Cache, CHS=38792/16/63, UDMA(100)
> hdi: 39102336 sectors (20020 MB) w/2048KiB Cache, CHS=38792/16/63, UDMA(100)
> hdk: 39102336 sectors (20020 MB) w/2048KiB Cache, CHS=38792/16/63, UDMA(100)
>
> /etc/raidtab
>
> raiddev /dev/md0
> raid-level 0
> nr-raid-disks 4
> persistent-superblock 0
> chunk-size <snipped>
>
> device /dev/hd<snipped>1
> raid-disk 0
> device /dev/hd<snipped>1
> raid-disk 1
> device /dev/hd<snipped>1
> raid-disk 2
> device /dev/hd<snipped>1
> raid-disk 3
>
>
> If you want your system to have this kind of performance, that raise hell
> to get the patches adopted into the main kernel.
Raising hell is usually bad idea. What is so cool about that? You used
raid0, that means individual disk has 35MB/sec. That does not seem too
interesting to me.
And... you can have as fast system as you want. That will not help
your patches...
Pavel
-- (about SSSCA) "I don't say this lightly. However, I really think that the U.S. no longer is classifiable as a democracy, but rather as a plutocracy." --hpa - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Mon Jan 07 2002 - 21:00:23 EST