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Brendan Gregg
@brendangregg
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3 h |
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Brendan Gregg
@brendangregg
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3 h |
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@fristle haven't tried. ftrace is pretty old, I hope the ARM work is done by now. Searching ftrace & ARM on lkml shows some recent work
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Brendan Gregg
@brendangregg
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3 h |
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@hsultan75 sounds dangerous; if I'm accessing something pre-fault, I try to look for another probe point that's post-fault to fetch it there
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Brendan Gregg
@brendangregg
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4 h |
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@hsultan75 ... then you have the many non built ins, like systemtap, LTTng, ... It gets complicated. :)
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Brendan Gregg
@brendangregg
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4 h |
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@hsultan75 good idea; for built ins: right now, 3.x use ftrace; 4.1-4.8 try BPF; 4.9+ use BPF; anything use perf for sampling/PMCs
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Brendan Gregg
@brendangregg
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5 h |
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@marius_gherman yes, sorry, I need to improve my CSS-for-mobile skills
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Brendan Gregg
@brendangregg
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6 h |
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new post: Give me 15 minutes and I'll change your view of Linux tracing brendangregg.com/blog/2016-12-2… #perf #ftrace #BPF
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Brendan Gregg
@brendangregg
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23 déc. |
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@a1cy it'll cost overhead, but you could dump sched events (maybe only 2 seconds worth!) to perf.data and post-process in awk/perl.
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Jerome Terry
@jeromeleoterry
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21 déc. |
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I wrote up a little post on steps to generate mixed-mode Java flame graph.l blog.jerometerry.com/2016/12/genera… GitHub repo github.com/jerometerry/pe…
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Brendan Gregg
@brendangregg
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22 déc. |
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@tarasglek yes, USENIX should post it at some point. I'll tweet when it's up
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Brendan Gregg
@brendangregg
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21 déc. |
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Just published: Give me 15 minutes and I'll change your view of Linux tracing #lisa16 youtube.com/watch?v=GsMs3n…
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Brendan Gregg
@brendangregg
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20 déc. |
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@mazumdas saw it, with 37 mins to go, pretty awesome
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Brendan Gregg
@brendangregg
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20 déc. |
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@DeepakHonnalli wow, with catches like that (Jadeja's), maybe it won't be a draw...
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Brendan Gregg
@brendangregg
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20 déc. |
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VMware acquires employees & assets of @PLUMgrid. Congrats! sdxcentral.com/articles/news/…
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Sasha Goldshtein
@goldshtn
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19 déc. |
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And here's another talk from #Reversim, exclusively on #BPF -- but in Hebrew :)
youtube.com/watch?v=2_ueSC…
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Brendan Gregg
@brendangregg
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19 déc. |
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@DeepakHonnalli I'm using willow.tv in the US. Ind vs Eng is on too, which is also good
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Brendan Gregg
@brendangregg
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19 déc. |
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Great to see Pakistan rally vs Australia in the 1st cricket test match. Competition is on.
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Brendan Gregg
@brendangregg
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14 déc. |
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Flame graphs by Facebook, just released on github github.com/josefbacik/ker… twitter.com/tgraf__/status…
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| Brendan Gregg a Retweeté | ||
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Sasha Goldshtein
@goldshtn
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13 déc. |
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Slides from #selasdp talk yesterday on low-level CPU optimizations (focus on vectorization): dropbox.com/s/qguwm8c39b6f…
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Brendan Gregg
@brendangregg
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12 déc. |
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