Client side stats SSL workload 4.3.2
Michael Hendrie <pmix-HaiLnJIfpmJWo+R/V/U2/[email protected]> Thu, 16 May 2013 10:25:51 +0930
| Newsgroups | gmane.comp.web.web-polygraph.user |
|---|---|
| Message-ID | <CAG+G1baE2g6fxxRhcgsu6ooqHCn-OYWpVB-FaywCi9V5eiN=ig@mail.gmail.com> |
Hi List,
I recently updated from Web-Polygraph 4.0.10 running on FreeBSD to
Web-Polygraph 4.3.2 running on Linux (RHEL 6.1 clone) and now have some
inconsistency being reported in the client side runtime stats.
The issue only seems to occur when polygraph-client is configured to send
requests via a proxy. In the client side stats, I'm seeing a significantly
higher request rate than what was configured, on the server side stats they
report as expected. e.g. on a test configured for 250req/sec:
Client Side Stats:
030.41| i-top1 786670 421.83 1357 0.00 0 1671
ssl 448598 421.83 1360 0.00 0 1671
030.50| i-top1 788934 452.78 1379 0.00 0 1668
ssl 449857 452.78 1379 0.00 0 1668
030.58| i-top1 791229 458.98 1465 0.00 0 1660
ssl 451193 458.98 1465 0.00 0 1660
030.66| i-top1 793401 434.40 1461 0.00 0 1687
ssl 452449 434.40 1463 0.00 0 1687
030.75| i-top1 795476 415.02 1401 0.00 0 1723
ssl 453636 415.02 1402 0.00 0 1721
Server Side Stats:
030.45| i-top1 426331 227.03 2518 0.00 0 2200
ssl 426331 227.03 2518 0.00 0 1637
030.54| i-top1 427519 237.59 2539 0.00 0 2201
ssl 427519 237.59 2539 0.00 0 1638
030.62| i-top1 428710 238.19 2467 0.00 0 2171
ssl 428710 238.19 2468 0.00 0 1608
030.70| i-top1 429962 250.40 2503 0.00 0 2300
ssl 429962 250.40 2502 0.00 0 1737
I didn't see this inconsistency in 4.0.10 and if I have a direct
client->server test (no proxy) then stats are also reported correctly.
The proxy itself (squid) is reporting around 190 client req/sec:
client_http.requests = 188.674032/sec
Having just read the changelog (after typing the above), now wondering if
the fix in the non-public 4.6.0 would resolve this issue?
*
- Make retried transactions obey request inter-arrival
distribution and, hence, Robot::req_rate setting.
*
Any thoughts/idea's?
Michael
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