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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*Tweaking\/Optimizing\s+MD\s+RAID\:\s+195MB\/s\s+write\,\s+181MB\/s\s+read\s+$so\s+far$\s*$/: 12 ]

Total 12 documents matching your query.

1. Tweaking/Optimizing MD RAID: 195MB/s write, 181MB/s read (so far) (score: 1): Author:; Date: Thu, 11 Jan 2007 18:05:36 -0500 (EST); With 4 Raptor 150s & XFS (default XFS options): echo 8192 > /sys/block/md3/md/stripe_cache_size DEFAULT: $ dd if=/dev/zero of=10gb.no.optimizations.out bs=1M count=10240 10240+0 records in 10240+0 re; /archives/xfs/2007-01/msg00075.html (8,549 bytes)
2. Re: Tweaking/Optimizing MD RAID: 195MB/s write, 181MB/s read (so far) (score: 1): Author:; Date: Fri, 12 Jan 2007 10:17:24 +1100; I need more context for this to be meaningful in any way. What type of md config are you using here? RAID0, 1, 5.....? What's the raw device throughput (i.e. read and write to /dev/md3)? output of 'g; /archives/xfs/2007-01/msg00076.html (8,445 bytes)
3. Re: Tweaking/Optimizing MD RAID: 195MB/s write, 181MB/s read (so far) (score: 1): Author:; Date: Thu, 11 Jan 2007 18:19:46 -0500 (EST); RAID5 with 128kb chunk size. Raid0 was 317MB/s write and 279MB/s read. meta-data=/dev/md3 isize=256 agcount=16, agsize=6868160 blks = sectsz=4096 attr=0 data = bsize=4096 blocks=109890528, imaxpct=25; /archives/xfs/2007-01/msg00077.html (9,457 bytes)
4. Re: Tweaking/Optimizing MD RAID: 195MB/s write, 181MB/s read (so far) (score: 1): Author:; Date: Thu, 11 Jan 2007 18:32:06 -0500 (EST); Have not tried DM stripe btw.; /archives/xfs/2007-01/msg00078.html (8,924 bytes)
5. Tweaking/Optimizing MD RAID: 195MB/s write, 181MB/s read (so far) (score: 1): Author: >; Date: Thu, 11 Jan 2007 18:05:36 -0500 (EST); With 4 Raptor 150s & XFS (default XFS options): echo 8192 > /sys/block/md3/md/stripe_cache_size DEFAULT: $ dd if=/dev/zero of=10gb.no.optimizations.out bs=1M count=10240 10240+0 records in 10240+0 re; /archives/xfs/2007-01/msg00315.html (8,549 bytes)
6. Re: Tweaking/Optimizing MD RAID: 195MB/s write, 181MB/s read (so far) (score: 1): Author: >; Date: Fri, 12 Jan 2007 10:17:24 +1100; I need more context for this to be meaningful in any way. What type of md config are you using here? RAID0, 1, 5.....? What's the raw device throughput (i.e. read and write to /dev/md3)? output of 'g; /archives/xfs/2007-01/msg00316.html (8,445 bytes)
7. Re: Tweaking/Optimizing MD RAID: 195MB/s write, 181MB/s read (so far) (score: 1): Author: >; Date: Thu, 11 Jan 2007 18:19:46 -0500 (EST); RAID5 with 128kb chunk size. Raid0 was 317MB/s write and 279MB/s read. meta-data=/dev/md3 isize=256 agcount=16, agsize=6868160 blks = sectsz=4096 attr=0 data = bsize=4096 blocks=109890528, imaxpct=25; /archives/xfs/2007-01/msg00317.html (9,457 bytes)
8. Re: Tweaking/Optimizing MD RAID: 195MB/s write, 181MB/s read (so far) (score: 1): Author: >; Date: Thu, 11 Jan 2007 18:32:06 -0500 (EST); Have not tried DM stripe btw.; /archives/xfs/2007-01/msg00318.html (8,924 bytes)
9. Tweaking/Optimizing MD RAID: 195MB/s write, 181MB/s read (so far) (score: 1): Author: Justin Piszcz <jpiszcz@xxxxxxxxxxxxxxx>; Date: Thu, 11 Jan 2007 18:05:36 -0500 (EST); With 4 Raptor 150s & XFS (default XFS options): echo 8192 > /sys/block/md3/md/stripe_cache_size DEFAULT: $ dd if=/dev/zero of=10gb.no.optimizations.out bs=1M count=10240 10240+0 records in 10240+0 re; /archives/xfs/2007-01/msg00555.html (8,549 bytes)
10. Re: Tweaking/Optimizing MD RAID: 195MB/s write, 181MB/s read (so far) (score: 1): Author: David Chinner <dgc@xxxxxxx>; Date: Fri, 12 Jan 2007 10:17:24 +1100; I need more context for this to be meaningful in any way. What type of md config are you using here? RAID0, 1, 5.....? What's the raw device throughput (i.e. read and write to /dev/md3)? output of 'g; /archives/xfs/2007-01/msg00556.html (8,525 bytes)
11. Re: Tweaking/Optimizing MD RAID: 195MB/s write, 181MB/s read (so far) (score: 1): Author: Justin Piszcz <jpiszcz@xxxxxxxxxxxxxxx>; Date: Thu, 11 Jan 2007 18:19:46 -0500 (EST); RAID5 with 128kb chunk size. Raid0 was 317MB/s write and 279MB/s read. meta-data=/dev/md3 isize=256 agcount=16, agsize=6868160 blks = sectsz=4096 attr=0 data = bsize=4096 blocks=109890528, imaxpct=25; /archives/xfs/2007-01/msg00557.html (9,563 bytes)
12. Re: Tweaking/Optimizing MD RAID: 195MB/s write, 181MB/s read (so far) (score: 1): Author: Justin Piszcz <jpiszcz@xxxxxxxxxxxxxxx>; Date: Thu, 11 Jan 2007 18:32:06 -0500 (EST); Have not tried DM stripe btw.; /archives/xfs/2007-01/msg00558.html (9,030 bytes)

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