480464 - Ts increase on winxp on 2009/02/26

Status: RESOLVED FIXED

(Release Engineering :: General, defect)

Description

[Daniel Holbert [:dholbert]]

There was a significant ts increase on the Windows XP unittest boxes today -- previously the value was pretty stable at around 460, and now it's up to 600, on 2 boxes: qm-pxp-trunk03 and qm-pxp-trunk01.  (qm-pxp-trunk02 isn't cycling right now for some reason, so it doesn't get a vote)

Here's the graph:
http://graphs.mozilla.org/#show=395018,395046,395006&sel=1235658780,1235684641

Here's the before/after logs for each box:
* qm-pxp-trunk01:
http://tinderbox.mozilla.org/showlog.cgi?log=Firefox/1235671792.1235681762.16444.gz
http://tinderbox.mozilla.org/showlog.cgi?log=Firefox/1235677333.1235688966.32627.gz

* qm-pxp-trunk03:
http://tinderbox.mozilla.org/showlog.cgi?log=Firefox/1235674631.1235686587.27970.gz
http://tinderbox.mozilla.org/showlog.cgi?log=Firefox/1235681406.1235691969.6619.gz

The tightest regression range (between the last good build on qm-pxp-trunk03 and the first bad build on qm-pxp-trunk01) is:
http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=37d6dfd70bac&tochange=76592d149b61

Possibly caused by Bug 478086? (its checkin message mentions "enumerating drives/disks on Win32")

Comment 1

[Serge Gautherie (:sgautherie)]

I backed bug 465158 out...

Comment 2

[[e-mail] (:bhearsum)]

Looks like these numbers are back to normal with that backout.
http://graphs.mozilla.org/#show=395018,395046,395006

Comment 3

[Honza Bambas (:mayhemer)]

Just for curiosity, how many NICs have those machines?

Comment 4

[alice nodelman [:alice] [:anode]]

All the Talos boxes are mac minis, so that would make it one NIC per test box - if I'm understanding the question correctly.

Comment 5

[Honza Bambas (:mayhemer)]

Thanks, this supports my theory that the windows API getting info on all NICs that caused this Ts is slow independently on number of network cards.