The interesting bit is what happens inside arc_reclaim_needed(), that is, how it arrives at the conclusion that there is memory pressure.
Maybe we could trace arg0, which gives the location where we have left the function. This would finger which return path arc_reclaim_needed() took. Steve ----- Original Message ----- Well it looks like the only place this get's changed is in the arc_reclaim_thread for opensolaris. I suppose you could dtrace it to see what is going on and investigate what is happening to the return code of the arc_reclaim_needed is. http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/uts/common/fs/zfs/arc.c#2089 maybe dtrace -n 'fbt:zfs:arc_reclaim_needed:return { trace(arg1) }' Dave
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