how about rollback your kernel to 2.6.9 ? On Sat, 19 Mar 2005 00:39:32 +0800, 孙俊伟 <sunjw@xxxxxxxxxxxxxx> wrote: > Hi, > After I updated GFS code from CVS on 2005/03/15 and > updated the kernel from kernel.org to version 2.6.11.3 > The GFS's concurrent-read performance declined badly, from 150MB/s to 50MB/s. > When I used the kernel 2.6.9-1.667, the read rate was about 150MB/s, > but now I only have 50MB/s with the same test. My test is to concurrently read > (with pthread) 200 files on the same GFS directory. > The single read/write performance was the same as the 2.6.9-based GFS, as my test. > > So what's the matter? I'm amazed badly... > > Thanks for any help. > Luckey. > > -- > > Linux-cluster@xxxxxxxxxx > http://www.redhat.com/mailman/listinfo/linux-cluster >
