| From: | Greg Smith <greg(at)2ndQuadrant(dot)com> |
|---|---|
| To: | Fabien COELHO <coelho(at)cri(dot)ensmp(dot)fr> |
| Cc: | Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Tatsuo Ishii <ishii(at)postgresql(dot)org>, PostgreSQL Developers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: [PATCH] pgbench --throttle (submission 7 - with lag measurement) |
| Date: | 2013-07-22 17:49:39 |
| Message-ID: | 51ED70B3.8050904@2ndQuadrant.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
Very minor update with V19 here, to reflect Alvaro's comments. The
tricky part now reads like this:
High rate limit schedule lag values, that is lag values that are large
compared to the actual transaction latency, indicate that something is
amiss in the throttling process. High schedule lag can highlight a
subtle problem there even if the target rate limit is met in the end.
--
Greg Smith 2ndQuadrant US greg(at)2ndQuadrant(dot)com Baltimore, MD
PostgreSQL Training, Services, and 24x7 Support www.2ndQuadrant.com
| Attachment | Content-Type | Size |
|---|---|---|
| pgbench-throttle-v19.patch | text/plain | 15.5 KB |
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