Hot answers tagged performance
It depends. If the files being removed are in the same file system and hardware device they will eventually be sequential anyways, because the operating system will wait the physical resource to do the actual operations in the hardware. Although each instance of rm will queue the operations so one is available when the other finishes, don't expect a big ...
Look into batch queueing software like TORQUE, PBS, Slurm etc. It lets you create a queue where users submit their tasks, and the software runs that on the machines available. Please note that this approach works well only with non-interactive stuff.
try; swap all cables in the route with new isolate linux and aix as only two machines on a single switch (reduce the test environment) cross over patch with static settings (if possible- reducing again) in case its the switch at fault, test with second switch get onto the switch itself and check for flapping or errors on the ports run wireshark on the ...
Like alx741 said I don't think you're going to get any real benefit one way or the other unless they're on separate file systems. I did some testing with a 700MB file. Here are my tests that backup my thoughts. I don't have multiple local partitions to play with so I can't test that. Here it is as one command sequentially. time rm -f test.dat1 test.dat2 ...
fs_usage shows information about file system usage (and related things). Given that, I suspect THROTTLED from fs_usage indicates it is disk access being throttled and not CPU (although THROTTLED is not clearly documented in the man page). OSX reduces I/O throughput of idle applications to give better performance to active ones (see this Ars article) so it's ...
Those threads serve different purposes. There is a main thread that starts and waits until shutdown, there are several background threads in Innodb and Aria, and so on. Attach gdb and do thread apply all bt to see what they are doing - most likely they are sitting there doing nothing waiting for for some event to happen.
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