Muli Ben-Yehuda wrote:
On Wed, Mar 30, 2005 at 09:25:29AM +0200, Shachar Shemesh wrote:
Processes should never spend too much time in the "D" state. The very
fact that certain activities mean you are almost guaranteed to see
processes in the "D" state means there are bugs in the kernel.
Why do you think so? D means that a process is holding a lock. Do you
mean "bugs" in the sense of "long lock holding times"?
The operative word in what I said was "see". If I manage to see, on a
regular basis, a process in the "D" state, it means that it is holding a
lock for too long. This, in turn, is a bug. It's not the mere locking
that I consider a bug.
Cheers,
Muli
Shachar
--
Shachar Shemesh
Lingnu Open Source Consulting ltd.
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