Alexander Bergolth wrote: > It is this patch that causes the stalls on my system: > > http://www.openafs.org/cgi-bin/cvsweb.cgi/openafs/src/rx/rx.c#rev1.58.2.19 > > -------------------- snipp! -------------------- > DELTA STABLE14-rx-fpq-bulk-free-20050529 > AUTHOR [EMAIL PROTECTED] > FIXES 19027 > > After profiling RX for a while, I've found a few more bottlenecks in the > packet handling code. This patch addresses a couple of these issues. > The major change in this patch is a new API to allow bulk packet > alloc/free ops on rx_queue's of packets. Benefits include reduced lock > contention on rx_freePktQ_lock, elimination of a lot of unnecessary cache > line invalidates, and reduced register window thrashing on sparc. > > In addition, this patch dedicates one rx_packet per thread to rxi_SendAck, > since that function is in the critical path, and represents a large > percentage of execution time. > -------------------- snipp! -------------------- > > http://www.openafs.org/cgi-bin/cvsweb.cgi/openafs/src/rx/rx.c.diff?r1=1.58.2.18&r2=1.58.2.19 > > > I reverted it in 1.3.84 and now the delays are gone.
What we don't know is what is wrong with this patch. That is the question I would like us to find an answer to. Jeffrey Altman
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