sears
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fded91fec6
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two unrelated changes: release rb_mut before getting header_mut on read path (breaks delta tuples), and implement first-cut support for pulling in statistics when reopening logstores (required for correct recovery)
git-svn-id: svn+ssh://svn.corp.yahoo.com/yahoo/yrl/labs/pnuts/code/logstore@868 8dad8b1f-cf64-0410-95b6-bcf113ffbcfe
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2010-06-21 20:03:05 +00:00 |
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sears
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8c35a1265a
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fix bug in overshoot_fudge computation; reduce number of knobs
git-svn-id: svn+ssh://svn.corp.yahoo.com/yahoo/yrl/labs/pnuts/code/logstore@860 8dad8b1f-cf64-0410-95b6-bcf113ffbcfe
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2010-06-18 23:00:23 +00:00 |
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sears
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0fb644640a
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improved concurrency for merger. not happy with worst case write latency on my dev machine anymore (seems to be less than 2.5 seconds, up from less than 1).
git-svn-id: svn+ssh://svn.corp.yahoo.com/yahoo/yrl/labs/pnuts/code/logstore@842 8dad8b1f-cf64-0410-95b6-bcf113ffbcfe
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2010-06-17 04:49:19 +00:00 |
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sears
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0ecd7491c7
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fix minor stats bugs; pull most stats computation into update_progress. The idea is that update_progress and tick, which are easily amortized, are the only stats things that need to grab latches
git-svn-id: svn+ssh://svn.corp.yahoo.com/yahoo/yrl/labs/pnuts/code/logstore@827 8dad8b1f-cf64-0410-95b6-bcf113ffbcfe
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2010-06-05 00:41:52 +00:00 |
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sears
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eda514ddaa
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amortize the computation of statistics (but not mutex acuqisitions) across many tuple insertions. Also, refactor stats stuff with latch contention in mind (but it still grabs too many latches...). This commit causes check_tcpclient to emit warnings on my machine. Not sure if it will happen on production hardware
git-svn-id: svn+ssh://svn.corp.yahoo.com/yahoo/yrl/labs/pnuts/code/logstore@824 8dad8b1f-cf64-0410-95b6-bcf113ffbcfe
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2010-06-02 21:47:58 +00:00 |
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sears
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fcf0dcca99
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cleanup / reimplement some of the statistics calculations. dial back periodically_force
git-svn-id: svn+ssh://svn.corp.yahoo.com/yahoo/yrl/labs/pnuts/code/logstore@821 8dad8b1f-cf64-0410-95b6-bcf113ffbcfe
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2010-05-28 21:20:26 +00:00 |
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sears
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aa7f7189d6
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admission control *almost* works; c1 sometimes blocks for a long time when a new c2 is created
git-svn-id: svn+ssh://svn.corp.yahoo.com/yahoo/yrl/labs/pnuts/code/logstore@809 8dad8b1f-cf64-0410-95b6-bcf113ffbcfe
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2010-05-26 00:58:17 +00:00 |
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sears
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c50c14d259
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admission control is now behaving properly (but there are still no concurrent writes, or bounds on how long admission control throttles a given writer)
git-svn-id: svn+ssh://svn.corp.yahoo.com/yahoo/yrl/labs/pnuts/code/logstore@806 8dad8b1f-cf64-0410-95b6-bcf113ffbcfe
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2010-05-21 23:43:17 +00:00 |
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sears
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2a1157602a
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Rewrite merge thread synchronization code, update status messages, implement preliminary (and ineffective) admission control, and force write merged data every megabyte (so that prograess can be tracked by admission control. Also, refactor quite a few things.
git-svn-id: svn+ssh://svn.corp.yahoo.com/yahoo/yrl/labs/pnuts/code/logstore@805 8dad8b1f-cf64-0410-95b6-bcf113ffbcfe
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2010-05-19 23:42:06 +00:00 |
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sears
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1adb980555
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added throttling policy and better stats. the throttling makes a merge policy bug painfully obvious (committing because i plan to do some refactoring...)
git-svn-id: svn+ssh://svn.corp.yahoo.com/yahoo/yrl/labs/pnuts/code/logstore@802 8dad8b1f-cf64-0410-95b6-bcf113ffbcfe
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2010-05-12 22:16:41 +00:00 |
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sears
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7b2560d906
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initial merge manager (multi-merge) statistics
git-svn-id: svn+ssh://svn.corp.yahoo.com/yahoo/yrl/labs/pnuts/code/logstore@797 8dad8b1f-cf64-0410-95b6-bcf113ffbcfe
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2010-04-29 23:13:04 +00:00 |
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sears
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ce48882946
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oops; forgot to add mergeStats.h; finished encapsuating its state
git-svn-id: svn+ssh://svn.corp.yahoo.com/yahoo/yrl/labs/pnuts/code/logstore@795 8dad8b1f-cf64-0410-95b6-bcf113ffbcfe
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2010-04-29 01:03:56 +00:00 |
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