Messages in this thread | | | Date | Fri, 28 Oct 2005 21:08:35 -0600 | From | jmerkey <> | Subject | Re: kernel performance update - 2.6.14 |
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jmerkey wrote:
> Nick Piggin wrote: > >> Jeff V. Merkey wrote: >> >>> >>> Verified. These numbers reflect my measurements as well. I have not >>> moved off 2.6.9 to newer kernels on shipping products due to these >>> issues. There are also serious stability issues as well, though >>> 2.6.14 seems a little better than than previous kernels. Jeff >>> >> >> These issues aren't going to fix themselves. Did you investigate >> any of the performance or (more importantly) stability problems? > > Added a little more clarification.
Jeff
> Yes I did. The list wasn't too long. I had problems with RCU messages > and irq warn messages at very high loads and init respawning itself > subjected to loads > 369 MB/S to the disk channels on 2.6.13. > Performance was down on disk I/O [vs.] 2.6.9. I did not investigate > the BIO fixes but something changed there. Theres also some memory > problems with corruption somewhere in the 2.6.14 (during module unload > and shutdown). > > Jeff >
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