Status: Unconfirmed
Owner: ----
Labels: Type-Bug Pri-2 OS-All Area-Misc
New issue 21884 by szhorvat: Parts of browser completely unresponsive
(frozen) while CPU usage on 100%
http://code.google.com/p/chromium/issues/detail?id=21884
Chrome Version : 4.0.206.1 (Official Build 25376)
URLs (if applicable) :
Other browsers tested: Firefox
Add OK or FAIL after other browsers where you have tested this issue:
Safari 4:
Firefox 3.x: OK
IE 7:
IE 8:
What steps will reproduce the problem?
1. Start Chrome (i.e. open a window)
2. Start a program that uses the CPU constantly (keeps CPU usage on 100%)
3. Search for something in Chrome using the omnibar (e.g. type "?some
thing" in
the URL bar)
What is the expected result?
A page with the search results should be loaded.
What happens instead?
Nothing.
Please provide any additional information below. Attach a screenshot if
possible.
Tested on WinXP SP3.
The program I used to max out the CPU did not do any I/O and did not use a
lot of
memory (it was just a script generating small random matrices and computing
their
determinant in an infinite loop).
As soon as the program that maxes out the CPU is stopped, the page with the
search
results loads.
I believe the cause of the problem to be that some of the Chrome processes
run at
a lower than default priority (according to the task manager), which means
that
they don't get any CPU cycles for as long as a process of higher priority is
maxing out the CPU (in Windows)
So why is this a problem (for me)? Even during interactive data processing
work,
I sometimes run computations that might take several minutes to complete,
and max
out the CPU. While waiting for these to complete, I might want to use a web
browser to read documentation, etc., but Chrome is unusable (Firefox is
fine). A
workaround would be running those computations with a lower priority, but
this is
just inconvenient, and with at least one of the programs I use
(Mathematica) it is
even discouraged (for various reasons related to how the GUI and computation
backend of this system interact).
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