Re: Buffwaits

In article <3nh0p8$n2u@amgen.amgen.com> timh@amgen.com writes: > Can some one tell me what buffwaits in the tbstat -p output is? The manual > says it's the number of times that a > user process has to wait on a buffer. My question is whether the process is > waiting on the contents of a buffer > (I wouldn't think so) or if it is waiting for a buffer to be freed? Assuming > the latter, increasing the number of buffers > should cut down on buffwaits - right? > [snip] It is the contents of the buffer. If there are no buffers free, a foreground write is initiated and a buffer is then available. Check tbstat -F for instances of Fg Writes. If there are, then increase the # of buffers. Buffwaits might be caused by two threads accessing the same buffer and locking each other out - check this out by increasing then decreasing buffers to see if the figure changes. Have fun! -- Graeme Burnett Xinit Open Systems Limited 0044 171 586 5855 PGP Mail preferred D50459D9 Key on public keyserver. 08 D1 34 87 6E 35 C8 BB D7 C6 BC CE 6B 03 2F 26