[jira] Updated: (DERBY-704) Large page cache kills initial performance

2009-06-29 Thread Dag H. Wanvik (JIRA)
[ https://issues.apache.org/jira/browse/DERBY-704?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Dag H. Wanvik updated DERBY-704: Derby Categories: [Performance] Large page cache kills initial performance

[jira] Updated: (DERBY-704) Large page cache kills initial performance

2005-11-16 Thread Knut Anders Hatlen (JIRA)
[ http://issues.apache.org/jira/browse/DERBY-704?page=all ] Knut Anders Hatlen updated DERBY-704: - Attachment: DERBY-704-extra-comments.diff Patch DERBY-704-extra-comments.diff adds the following comments to the code: // 1) find out how many

Re: [jira] Updated: (DERBY-704) Large page cache kills initial performance

2005-11-15 Thread Knut Anders Hatlen
David W. Van Couvering [EMAIL PROTECTED] writes: There appear to be definite improvements here in terms of the consistency of throughput and CPU usage. Are the regular massive spikes in throughput and CPU usage related to the issues that Oystein was raising about checkpointing? Thanks for

[jira] Updated: (DERBY-704) Large page cache kills initial performance

2005-11-14 Thread Knut Anders Hatlen (JIRA)
[ http://issues.apache.org/jira/browse/DERBY-704?page=all ] Knut Anders Hatlen updated DERBY-704: - Attachment: DERBY-704.diff derbyall_report.txt Attached patch and report from running derbyall (no tests failed). The patch modifies

[jira] Updated: (DERBY-704) Large page cache kills initial performance

2005-11-14 Thread Knut Anders Hatlen (JIRA)
[ http://issues.apache.org/jira/browse/DERBY-704?page=all ] Knut Anders Hatlen updated DERBY-704: - Attachment: throughput.png cpu-usage.png Attached graphs showing the throughput and CPU usage running with and without the patch. The

Re: [jira] Updated: (DERBY-704) Large page cache kills initial performance

2005-11-14 Thread David W. Van Couvering
There appear to be definite improvements here in terms of the consistency of throughput and CPU usage. Are the regular massive spikes in throughput and CPU usage related to the issues that Oystein was raising about checkpointing? Thanks, David Knut Anders Hatlen (JIRA) wrote: [