Eric Anderson wrote:
I'm seeing similar sequential performance on RELENG_5_3 and RELENG_5_4 on dual-Xeons using 3ware controllers so it does not seem to be a driver issue but somewhere else in the architechture. Depending on the array configuration, 40-60MB/s reads and 100-160MB/s writes. The write performance is as expected but the read performance should be above the write performance.
I'm using fiber channel SATA, and I get 2x write as I do read, which doesn't make sense to me. What kind of write speeds do you get? My tiny brain tells me that reads should be faster than writes with a RAID5.
Pete
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