29 messages in org.freebsd.freebsd-emulationRe: [PATCH] pipe2 for Linuxulator| From | Sent On | Attachments |
|---|---|---|
| Jung-uk Kim | Apr 10, 2012 3:56 pm |  .diff |
| Jung-uk Kim | Apr 10, 2012 4:39 pm | |
| Jung-uk Kim | Apr 10, 2012 5:27 pm | |
| Alexander Best | Apr 13, 2012 1:31 pm | |
| Alexander Leidinger | Apr 14, 2012 6:50 am | |
| Alexander Leidinger | Apr 14, 2012 6:54 am | |
| Alexander Best | Apr 14, 2012 1:32 pm | |
| Alexander Leidinger | Apr 14, 2012 1:47 pm | |
| Alexander Leidinger | Apr 14, 2012 3:02 pm | |
| Alexander Best | Apr 14, 2012 5:01 pm | |
| Alexander Best | Apr 15, 2012 3:11 am | |
| Alexander Best | Apr 15, 2012 4:22 am | |
| Alexander Leidinger | Apr 15, 2012 4:44 am | |
| Alexander Best | Apr 15, 2012 4:50 am | .Other |
| Alexander Best | Apr 15, 2012 6:02 am | |
| Alexander Leidinger | Apr 15, 2012 7:30 am | |
| Alexander Best | Apr 15, 2012 7:41 am | |
| Alexander Best | Apr 15, 2012 11:15 am | |
| Alexander Best | Apr 15, 2012 11:29 am | |
| Alexander Best | Apr 15, 2012 11:46 am | |
| Alexander Leidinger | Apr 15, 2012 11:52 am | |
| Alexander Leidinger | Apr 15, 2012 12:00 pm | |
| Alexander Best | Apr 15, 2012 12:03 pm | |
| Alexander Leidinger | Apr 15, 2012 12:05 pm | |
| Alexander Leidinger | Apr 15, 2012 12:16 pm | |
| Alexander Best | Apr 15, 2012 1:56 pm | |
| Alexander Best | Apr 15, 2012 2:03 pm | |
| Jung-uk Kim | Apr 16, 2012 2:32 pm | |
| Alexander Best | Apr 21, 2012 3:16 pm |
| Subject: | Re: [PATCH] pipe2 for Linuxulator | |
|---|---|---|
| From: | Alexander Leidinger (Alex...@Leidinger.net) | |
| Date: | Apr 15, 2012 12:00:40 pm | |
| List: | org.freebsd.freebsd-emulation | |
On Sun, 15 Apr 2012 18:29:28 +0000 Alexander Best <arun...@freebsd.org> wrote:
On Sun Apr 15 12, Alexander Best wrote:
running stats_timing.d revealed something strange...according to this section:
Number of calls per provider/application/kernel function:
linuxulator32 npviewer.bin proc_exit 2
proc_exit only got callded twice. however according to this section:
Longest running (CPU-time!) functions per provider (in ns): linuxulator32 proc_exit -16995
the CPU spent a lot of time for those two calls.
AFAIR proc_exit walks down a list or two. Depending on how much is going on, this may take a while.
Looks like my DTrace probes and scripts offer the opportunity to do some performance related observations in an easy way. Now we just need some interested souls to actually do it and optimize some things. It would also be great if someone could have a look at http://dtrace.org/blogs/brendan/ and code up some nice GUI respectively an observation and analysis tool. Graphs as represented by Brendan give a much better way of understanding what's going on than a lot of numbers.
Bye, Alexander.
-- http://www.Leidinger.net Alexander @ Leidinger.net: PGP ID = B0063FE7 http://www.FreeBSD.org netchild @ FreeBSD.org : PGP ID = 72077137
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