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SubjectRE: [PATCH V2 RESEND] fsl-sata: I/O load balancing
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On Fri, 2012-02-17 at 01:54 +0000, Liu Qiang-B32616 wrote:
> The default will be set in a common interface fsl_sata_set_irq_coalescing when
> initialize the controller. This interface will check the range of intr count
> and ticks and make sure the values are reasonably.
Allright, but the current defaults are basically no coalescing right ?

> It's hard to find a aggressive value to adapt all scenarios, so I use echo to adjust
> the value. I remember P5020 have some performance issue, I will check it.
> BTW, which filesystem do you use? Ext2 is lower than ext4 because metadata is
> continuously wrote to disk. You can try ext4 or xfs.

ext3 at the moment, I plan to switch to ext4 when I finish that fsck
pass which is taking hours... I am not aware of the 5020 performance
issues, is this something documented and/or fixable ?

Cheers,
Ben.




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