On 3/18/2015 5:14 PM, John-Mark Gurney wrote:
# dtrace -x stackframes=100 -n 'profile-997 /arg0/ { @[stack()] = count(); } tick-60s { exit(0); }' -o out.kern_stacksAlso, another thing you can do is to compare the two using differential flame graphs: http://www.brendangregg.com/blog/2014-11-09/differential-flame-graphs.html Which will highlight where the performances differ...
OK, some more data points. It seems a performance regression happened in RELENG_10 somewhere between r277684 (late January 2015) and now. Using r277684 on RELENG_10, I can get about 75Mb/s of throughput on OpenVPN. Still not as good as the 83-85Mb on RELENG_9, but much better than the 61Mb using RELENG_10 from the start of this week,
For the differential graph, see http://tancsa.com/diffgraph.svg and http://tancsa.com/10-r277684.svg http://tancsa.com/10-r277684-kern.svg ---Mike -- ------------------- Mike Tancsa, tel +1 519 651 3400 Sentex Communications, [email protected] Providing Internet services since 1994 www.sentex.net Cambridge, Ontario Canada http://www.tancsa.com/ _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[email protected]"
