[Cbe-oss-dev] [PATCH] ps3_storage scheduling while atomic

Florin Malita fmalita at gmail.com
Tue Jan 30 01:12:19 EST 2007


Geert Uytterhoeven wrote:
> 	Hi Florin,
>
> On Sun, 28 Jan 2007, Florin Malita wrote:
>   
>> Any plans to address this? Any input on the patch?
>>     
>
> Sorry, in the mean time I haven't really looked at the storage driver anymore
> (busy with ps3av and ps3fb). I'll resume storage work soon.

Sounds good, thanks.

One thing I noticed is some pretty serious performance degradation when 
moving from 2.6.16 to the latest tree. Don't have any hard numbers to 
back it up at the moment but an informal hdparam -t dropped from ~27MB/s 
to ~15MB/s and disk I/O seems to make the X server freeze for short periods.

OTOH, the new configuration is probably pretty different from the stock 
2.6.16 so there might be something else besides the storage driver 
affecting it. Is the current storage driver fundamentally different from 
what's in 2.6.16 or is it supposed to be just a port?

---
fm




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