Hello, [EMAIL PROTECTED], le Tue 11 Mar 2008 04:53:45 +0100, a écrit : > [I] suggested a more adaptive approach: Keep track of the existing > threads, and if none of them makes progress in a certain amount of > time (say 100 ms), allow creating some more threads. But that was > never implemented. Also, it still might cause considerable delays in > some situations; and I'm not even sure it would fix all problems. (I > didn't fully understand the problem discussed in this thread, so I > don't know whether it would be fixed by that?)
The problem I was observing is when you have a sync_all which triggers the write of a lot of files, but unfortunately the superblock was paged out, so that you aren't able to start another thread to reload it. Whatever the thresholds you choose, with a big enough load you will still have the problem of resisting to creating enough threads for all these request, plus one for the superblock reload request. Samuel
