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From: rkj@softhome.net
To: xfs@oss.sgi.com
Subject: Looking for Linux XFS file system performance tuning tips for LSI 9271-8i + 8 SSD's RAID0
Date: Sun, 03 Feb 2013 13:36:48 -0700	[thread overview]
Message-ID: <courier.510ECA60.00003A99@softhome.net> (raw)


I am working with hardware RAID0 using LSI 9271-8i + 8 SSD's.  I am using 
CentOS 6.3 on a Supermicro X9SAE-V motherboard with Intel Xeon E3-1275V2 CPU 
and 32GB 1600 MHz ECC RAM.  My application is fast sensor data store and 
forward with UDP based file transfer using multiple 10GbE interfaces.  So I 
do not have any concurrent loading, I am mainly interested in optimizing 
sequential read/write performance. 

Raw performance as measured by Gnome Disk Utility is around 4GB/s sustained 
read/write.  With XFS buffer IO, my sequential writes max out at about  2.5 
GB/s.  With Direct IO, the sequential writes are around 3.5 GB/s but I 
noticed a drop-off in sequential reads for smaller record sizes.  I am 
trying to get the XFS sequential read/writes as close to 4 GB/s as possible. 

I have documented all of the various mkfs.xfs options I have tried, fstab 
mount options, iozone results, etc. in this forum thread: 

http://www.xtremesystems.org/forums/showthread.php?284853-Looking-for-Linux- 
file-system-performance-tuning-tips-for-LSI-9271-8i-8-SSD-s-RAID0 

Please let me know if you have any suggestions.

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             reply	other threads:[~2013-02-03 20:37 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-02-03 20:36 rkj [this message]
2013-02-04  9:11 ` Looking for Linux XFS file system performance tuning tips for LSI 9271-8i + 8 SSD's RAID0 Linda Walsh
2013-02-04 12:52 ` Looking for Linux XFS file system performance tuning tips for LSI9271-8i " Dave Chinner

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