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Lukasz Janyst wrote: > 2011/10/7 Paul T. Keener <[log in to unmask]>: >> I will look at this, but if it really is a network problem, wouldn't I see >> it regardless of which xrootd namespace I was talking to? > > Probably, but on the other hand xrootd does not have control over > hardware interrups (unless you meant syscalls :) Right. What I am reporting is the "int" line from dstat. I don't expect that it is the problem; I just wanted to give a more complete list of metrics that change significantly under load. I am more concerned about the wait states, reported under the "wai" line in dstat. This seems to have the best correlation with the performance problems. Is there a way to get useful performance information out of the xrootd process? -paul