On 12 Aug 2010, at 17:10, robert wrote: > - Is there a way to check the amount of time that the different parts of > a file operation take (like 1ms requesting metadata, 1ms receiving > metadata, 123ms reading blocks from OST, ...)?
"strace ls" is interesting to watch if you haven't unaliased ls as below... > - Does anyone have a hint on what could be the problem, where to search > or what to do? One very simple trick that I was un-aware of until it was mentioned at the lug is to unalias ls. Most, if not all distributions alias ls to "ls --color" which causes ls to stat every single file in a directory to decipher it's type, running /bin/ls will improve the ls performance by several orders of magnitude. Ashley, -- Ashley Pittman, Bath, UK. Padb - A parallel job inspection tool for cluster computing http://padb.pittman.org.uk _______________________________________________ Lustre-discuss mailing list [email protected] http://lists.lustre.org/mailman/listinfo/lustre-discuss
