Messages in this thread |  | | Date | Fri, 05 Jan 2001 12:41:39 -0500 | From | Chris Mason <> | Subject | Re: reiserfs patch for 2.4.0-final |
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On Friday, January 05, 2001 02:54:53 PM -0200 Rik van Riel <riel@conectiva.com.br> wrote:
> On Fri, 5 Jan 2001, Chris Evans wrote: >> On Fri, 5 Jan 2001, Chris Mason wrote: >> >> > > Could someone create one single patch for the 2.4.0 ? >> > > >> > I put all the code into CVS, and Yura is making the official patch now. >> >> Since 2.4.0 final should fix a few i/o performance issues >> (particuarly under heavy write loads), a quick few ext2 vs. >> reiserfs benchmarks would make very interesting reading ;-) > > An easy way to gain a performance edge on ext2 would > be to do proper write clustering in the reiserfs > ->writepage() function... </hint> >
;-)
The current 2.4 code has lots of room for tuning, since I've been trying to keep it clean/stable for now (and our dbench numbers show it). The first optimization is tuning for reiserfs_get_block, I think writepage clustering will be easier (and more beneficial) if we work out the buffer.c changes I've been posting.
I also want to change the log block allocation a bit, so the log blocks are allocated as the transaction progresses, instead of all at the end. I think that will make us much more VM friendly, and let me get rid of the inode writing kludges. It'll be a busy weekend ;-)
-chris
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