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From Vladimir Rodionov <vrodio...@carrieriq.com>
Subject RE: G1 before/after GC time graph
Date Wed, 10 Jul 2013 19:57:29 GMT

What is  -Xmx heap size?

Best regards,
Vladimir Rodionov
Principal Platform Engineer
Carrier IQ, www.carrieriq.com
e-mail: vrodionov@carrieriq.com

From: Otis Gospodnetic [otis.gospodnetic@gmail.com]
Sent: Wednesday, July 10, 2013 12:00 PM
To: user@hbase.apache.org
Subject: G1 before/after GC time graph


There was talk of G1 and HBase here over the past few days.  I wanted
to share a fresh and telling SPM graph showing G1 + some other params
in action:

Result first: https://apps.sematext.com/spm/s/wN0hKVixxX

This is what we had before:
  -XX:+HeapDumpOnOutOfMemoryError -XX:+UseG1GC
-XX:InitiatingHeapOccupancyPercent=35 -XX:G1ReservePercent=25

And then we added:
  -XX:MaxGCPauseMillis=200 -XX:NewRatio=4

I hope this helps.

HBase Performance Monitoring -- http://sematext.com/spm

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