Displaying 2 results from an estimated 2 matches for "xhpl".
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2009 Mar 23
1
question about top output
...em: 16424052k total, 13900392k used, 2523660k free, 10560k buffers
Swap: 499988k total, 152k used, 499836k free, 28700k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
8568 jgreen 25 0 2089m 1.7g 4184 R 23 10.5 109:06.90 xhpl
8572 jgreen 25 0 2080m 1.6g 4184 R 23 10.5 109:12.40 xhpl
8574 jgreen 25 0 2079m 1.6g 4220 R 23 10.5 109:07.43 xhpl
8575 jgreen 25 0 2063m 1.6g 4168 R 23 10.4 109:08.12 xhpl
8570 jgreen 25 0 2084m 1.6g 4188 R 23 10.5 109:07.52 xhpl
8571 jgreen 25 0 2067m 1.6g...
2013 Aug 22
13
Lustre buffer cache causes large system overhead.
We have just discovered that a large buffer cache generated from traversing a
lustre file system will cause a significant system overhead for applications
with high memory demands. We have seen a 50% slowdown or worse for
applications. Even High Performance Linpack, that have no file IO whatsoever
is affected. The only remedy seems to be to empty the buffer cache from memory
by running