Shane,
You may be seeing
8081629 CMS split_block() does not correctly fix up block-offset-table
for large blocks
https://bugs.openjdk.java.net/browse/JDK-8081629
If you can try an early release version of jdk9, this bug is
fixed there.
Jon
On 03/04/2016 10:33 AM, Shane Cox wrote:
We are running Java 8_45 on Linux. We are seeing period of time when
ParNew pause time steadily increases from 5ms to over 1 second. As
the pause time increases, User CPU time increases in proportion.
Then, just as suddenly as the problem started, it ends and pause time
returns to 5ms.
GC log attached. The issue begins around 2016-02-28T17:05 and ends at
2016-02-28T19:33. During that span of nearly 2.5 hours, ParNew pause
time steadily increased from 5ms to 1.47 seconds. CPU utilization
ranged from 95-99% idle during this period. Percent free memory did
not change during this period.
Any ideas what might be causing this?
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