| 2011-10-23 23:17:19 |
Mathieu Comandon |
description |
Many of the problems I encountered seem to be related to a single issue : the maximum number of watches inotify is able to handle.
I have found that the default maximum number of watches is way to low too handle every feature using inotify, a default Ubuntu uses a great number of watches out of the box and in Natty and Oneiric is starts to be a real problem.
Possible effects are :
- Ubuntu One not syncing correctly
- Nautilus not updating itself when a file is created or deleted.
- Audio players not updating music libraries
- tail -f or other programs using inotify show a cryptic message about no space being left on the device (while there's plenty of space)
I have found that simply doubling the maximum of watches *is not enough* for a normal use, and if I believe this comment : https://bugs.launchpad.net/ubuntu/+source/beagle/+bug/115801/comments/4 there is no problem to setting the number of watches to a high value. My current setting is 524288, which is 64 times the default value, It may be too high for a default value but I believe that 65536 or 131072 should be enough for almost everyone.
If Precise Pangolin wants to be predictable, this issues *has* to be addressed. |
Many of the problems I encountered seem to be related to a single issue : the maximum number of watches inotify is able to handle.
I have found that the default maximum number of watches is way to low too handle every feature using inotify, a default Ubuntu uses a great number of watches out of the box and in Natty and Oneiric it starts to become a real problem.
Possible effects are :
- Ubuntu One not syncing correctly
- Nautilus not updating itself when a file is created or deleted.
- Audio players not updating music libraries
- tail -f or other programs using inotify show a cryptic message about no space being left on the device (while there's plenty of space)
I have found that simply doubling the maximum of watches *is not enough* for a normal use, and if I believe this comment : https://bugs.launchpad.net/ubuntu/+source/beagle/+bug/115801/comments/4 there is no problem to setting the number of watches to a high value. My current setting is 524288, which is 64 times the default value, It may be too high for a default value but I believe that 65536 or 131072 should be enough for almost everyone.
If Precise Pangolin wants to be predictable, this issues *has* to be addressed. |
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