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List:       openjdk-serviceability-dev
Subject:    Re: RFR: JDK-8122944 perfdata used is seen as too high on sparc zone with jdk1.9 and causes a test f
From:       "serguei.spitsyn () oracle ! com" <serguei ! spitsyn () oracle ! com>
Date:       2015-06-18 10:11:42
Message-ID: 5582995E.7040901 () oracle ! com
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It looks good to me.

Thanks,
Serguei


On 6/18/15 1:56 AM, Staffan Larsen wrote:
> This test is failing on machines with lots of CPUs since we create lots of compiler \
> threads and there are 4 perf counters for each compiler thread. This eats memory. 
> A simple solution is to just bump the default for PerfDataMemorySize from 32K to \
> 64K - "that should be enough for everyone." 
> Thanks,
> /Staffan
> 
> bug: https://bugs.openjdk.java.net/browse/JDK-8122944
> 
> 
> 
> diff --git a/src/share/vm/runtime/globals.hpp b/src/share/vm/runtime/globals.hpp
> --- a/src/share/vm/runtime/globals.hpp
> +++ b/src/share/vm/runtime/globals.hpp
> @@ -3733,7 +3733,7 @@
> product(bool, PerfDisableSharedMem, false,                                \
> "Store performance data in standard memory")                      \
> \
> -  product(intx, PerfDataMemorySize, 32*K,                                   \
> +  product(intx, PerfDataMemorySize, 64*K,                                   \
> "Size of performance data memory region. Will be rounded "        \
> "up to a multiple of the native os page size.")                   \
> 


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