RFR: 8221535: add steal tick related information to hs_error file [linux]
David Holmes
david.holmes at oracle.com
Wed Mar 27 09:28:30 UTC 2019
Hi Matthias,
We already have code of this form in os_perf_linux.cpp. Can you update
that for steal-ticks and reuse it?
Thanks,
David
On 27/03/2019 6:41 pm, Baesken, Matthias wrote:
> Hello, please review the following change .
>
> Recent Linux kernels provide in the /proc filesystem so called "steal" information, see the the proc man page :
>
> ..
> "there is an eighth column, steal - stolen time, which is the time spent in other operating systems when running in a virtualized environment"
>
> The info was useful in our internal VM, when looking into performance issues (especially in virtualized environments), so it should be added to the hs_err file .
>
> Bug/webrev :
>
> https://bugs.openjdk.java.net/browse/JDK-8221535
>
> http://cr.openjdk.java.net/~mbaesken/webrevs/8221535.0/
>
>
> Best Regards, Matthias
>
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