mozilla/browserid — Issue #954: IE9/win7 showing some pauses (CPU spikes) when doing STR in GH-935
Author: jrgm
Created: 2012-01-24 06:34:51+00:00
State: open

See the initial STR in GH-935, and followup comments reproduced here:

Llloyd:
an issue on train-2012.01.18 - STR:

1. go beta.myfavoritebeer.org
2. click `login`
3. click `this is not me` if you're already signed in
4. type in the email address of an existing browserid acct
5. click `next`
6. click `forgot your password`
7. click `reset password`

Notice flicker (the buttons) and that you are not successfully transitioned to the "Check Your Email" page.

jrgm:
This flow works (mostly) in dev for IE9/win7, but it has some unusual pauses (long enough that a user would think something had gone wrong) or in one try it moved from the check your email screen back to the cancel/reset-password
screen and just stuck there. Trying other win7 browsers now....

Ok, so I tried the STR at the beginning of this bug several times, alternating
IE9/Chrome16/FF9. I was also running the windows 'Resource Monitor' while
doing this ('Start > Accessories > System Tools > Resource Monitor' or from
cmd.exe '%windir%\system32\perfmon.exe -res').

After loading the confirmation link from the email sent out, IE9 would show a
~90% spike in CPU for several seconds; FF and Chrome did not.

Anyways, I'll split out my comments above to a separate issue, as it appears
this is an IE9 specific thing.