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Search took 0.09 seconds. Search: Posts made by: Chris Friesen

Forum: Storage & Hardrives

May 1st 09, 03:51 PM Posted to comp.os.linux.development.system,comp.arch.storage

Replies: 32

Unimpressive performance of large MD raid

Views: 2,198

Posted By Chris Friesen

Unimpressive performance of large MD raid (LONG!)

kkkk wrote:
Hi all
here are details. Actually most news are not good, but I appear to have
found one bottleneck: LVM, see below.

Have you communicated this information to the linux filesystem...

Forum: Storage & Hardrives

April 24th 09, 03:44 PM Posted to comp.os.linux.development.system,comp.arch.storage

Replies: 32

Unimpressive performance of large MD raid

Views: 2,198

Posted By Chris Friesen

Unimpressive performance of large MD raid

kkkk wrote:

In my case dd pushes 5 seconds of data before the disks start writing
(dirty_writeback_centiseces = 500). dd stays always at least 5 seconds
ahead of the writes. This should fill...

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