I am trying to create a low-disk condition for testing I/O errors during
|make mozmill| test suite run of thunderbird.
I am not sure where the various files are stored during |make mozmill|.
I can think of TMP, TMPDIR, and a few other
settings.
Does anyone have an idea of overview of the file used?
(Like log files for captured during run?)
If I know where the files are stored, I can either create a mini file
system and store these in such file systems, OR
I can create a large file with dd if=/dev/zero ...
to use up enough space to cause TB to hit ENOSPC error during execution.
On my own, I found that mozmill seems to use the following directory for
a TB profile that is used during the test run, and that is where mail
folders are stored, for example.
Quote from |make mozmill| run.
Using profile dir:
/REF-OBJ-DIR/objdir-tb3/mozilla/_tests/mozmill/mozmillprofile
/REF-OBJ-DIR/objdir-tb3 is my MOZ_OBJDIR and so I monitored how much
storage I should set aside for this directory to start running |make
mozmill| and then yet get some I/O errors due to filled-up file system.
To my surprise, the du the-above-directory shows
4-14 MB usage during the |make mozmill| run, but at the end, it jumps up
to 30+ MiB and stays at this number after |make mozmill| finished. I was
surprised at this number
Here is what I found out about the used space of the mozmillprofile
directory after the |make mozmill| test suite finished.
Can anyone shed light on the BIG CACHE file that exist AFTER |make
mozmill| finished?
588 ./plugins
16 ./Mail/Local Folders
12 ./Mail/tinderbox
32 ./Mail
4 ./Cache/5
4 ./Cache/F
4 ./Cache/2
4 ./Cache/0
4 ./Cache/8
4 ./Cache/C
4 ./Cache/4
4 ./Cache/1
4 ./Cache/E
4 ./Cache/3
4 ./Cache/7
4 ./Cache/D
4 ./Cache/9
4 ./Cache/B
4 ./Cache/6
4 ./Cache/A
12380 ./Cache <==== THIS seems to the BIG JUMP at the end.
2440 ./startupCache
8 ./extensions/mozm...@mozilla.com/skin
160 ./extensions/mozm...@mozilla.com/resource/modules
256 ./extensions/mozm...@mozilla.com/resource/stdlib
420 ./extensions/mozm...@mozilla.com/resource
8 ./extensions/mozm...@mozilla.com/defaults/preferences
g12 ./extensions/mozm...@mozilla.com/defaults
12 ./extensions/mozm...@mozilla.com/locale/en-US
16 ./extensions/mozm...@mozilla.com/locale
76 ./extensions/mozm...@mozilla.com/content/css/smoothness/images
108 ./extensions/mozm...@mozilla.com/content/css/smoothness
124 ./extensions/mozm...@mozilla.com/content/css
12 ./extensions/mozm...@mozilla.com/content/img
16
./extensions/mozm...@mozilla.com/content/editor/bespin/resources/screen_theme
20 ./extensions/mozm...@mozilla.com/content/editor/bespin/resources
352 ./extensions/mozm...@mozilla.com/content/editor/bespin
360 ./extensions/mozm...@mozilla.com/content/editor
20 ./extensions/mozm...@mozilla.com/content/test
308 ./extensions/mozm...@mozilla.com/content/jquery
928 ./extensions/mozm...@mozilla.com/content
1412 ./extensions/mozm...@mozilla.com
12 ./extensions/jsbri...@mozilla.com/components
44 ./extensions/jsbri...@mozilla.com/resource/modules
48 ./extensions/jsbri...@mozilla.com/resource
12 ./extensions/jsbri...@mozilla.com/chrome/content
16 ./extensions/jsbri...@mozilla.com/chrome
88 ./extensions/jsbri...@mozilla.com
1504 ./extensions
4 ./minidumps
30180 .
I could probably create 15 MiB file system (using loopback device) and
copy the files (except for CACHE) and create a symlink to the new file
system and run |make mozmill|, but I wonder that impact of this large
CCACHE before |make mozmill| runs and at the end.
TOA
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