search for: max_dirty_mb

Displaying 2 results from an estimated 2 matches for "max_dirty_mb".

2013 Aug 25
2
Loop device performance
...0m2.290s sys 0m4.880s And immediate re-run gives me : real 0m7.810s user 0m2.187s sys 0m5.360s I`m usig lustre-2.4.0-2.6.32_358.6.2.el6_lustre.g230b174.x86_64_gd3f91c4. Also set all of "small files" optimizations like, no striping for the dirs containing the small files, max_dirty_mb=256, max_rpcs_in_flight=32, staahead=8192 and lnet.debug=0. Is it normal to get two times slower access times with the mounted loop device ?? _______________________________________________ Lustre-discuss mailing list Lustre-discuss-aLEFhgZF4x6X6Mz3xDxJMA@public.gmane.org http://lists.lustre.org/...
2010 Aug 17
18
write RPC & congestion
Hi, thanks for previous help. I have some question about Lustre RPC and the sequence of events that occur during large concurrent write() involving many processes and large data size per process. I understand there is a mechanism of flow control by credits, but I''m a little unclear on how it works in general after reading the "networking & io protocol" white paper. Is