Hi all, I would like to experiment with different SSHFS mount options to see if we can improve /home performance on fat clients by sacrificing SSH encryption strength or compression. Where are these options located?
I benchmarked home directory performance on fat clients using a simple dd read / write test: Write: ~60 MB/sec Read: ~40 MB/sec This is not bad, but I would have hoped for more. Everything is on a 1Gbit network. The fat clients are reasonably modern Intel Ivy Bridge CPUs (2012) that score around 2,600 on cpubenchmark.net. The servers have quad core Xeon 1200v3 CPU with RAID1 Hard Disks serving /home. The server does not experience significantly increased CPU load when the tests are run on the fat clients. However, CPU load on the fat client is significantly affected by the test; it consumes approximately 100% of one CPU core (or around 50% of both cores) when it runs. This leads me believe that the (single threaded) SSH encryption load is causing the bottleneck, and maybe it can be improved by changing the SSHFS mount options. Thanks! Graham ------------------------------------------------------------------------------ Dive into the World of Parallel Programming. The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ _____________________________________________________________________ Ltsp-discuss mailing list. To un-subscribe, or change prefs, goto: https://lists.sourceforge.net/lists/listinfo/ltsp-discuss For additional LTSP help, try #ltsp channel on irc.freenode.net
