[ Cc:s trimmed, added abiss-general ] Con Kolivas wrote: > Possibly reiserfs journal related. That has larger non-preemptible code > sections.
If I understand your workload right, it should consist mainly of computation, networking (?), and disk reads. I don't know much about ReiserFS, but in some experiments with ext3, using ABISS, we found that a reader application competing with best effort readers would experience worst-case delays of dozens of milliseconds. They were caused by journaled atime updates. Mounting the file system with "noatime" reduced delays to a few hundred microseconds (still worst-case). - Werner -- _________________________________________________________________________ / Werner Almesberger, Buenos Aires, Argentina [EMAIL PROTECTED] / /_http://www.almesberger.net/____________________________________________/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
