Chuck Lever <cel@xxxxxxxxxx> wrote: > Flamegraph analysis showed that the cork/uncork calls consume > nearly a third of the CPU time spent in svc_tcp_sendto(). The > other two consumers are mutex lock/unlock and svc_tcp_sendmsg(). > > Now that svc_tcp_sendto() coalesces RPC messages properly, there > is no need to introduce artificial delays to prevent sending > partial messages. > > After applying this change, I measured a 1.2K read IOPS increase > for 8KB random I/O (several percent) on 56Gb IP over IB. > > Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx> Reviewed-by: David Howells <dhowells@xxxxxxxxxx>
