On Thu, 20 May 2010, Jens Axboe wrote: > On Thu, May 20 2010, Miklos Szeredi wrote: > > This continues zero copy I/O support on the fuse interface. The first > > part of the patchset (splice write support on fuse device) was posted > > here: > > > > http://lkml.org/lkml/2010/4/28/215 > > > > With Jens' pipe growing patch and additional fuse patches it was > > possible to achieve a 20GBytes/s write throghput on my laptop in a > > "null" filesystem (no page cache, data goes to /dev/null). > > Do you have some numbers on how that compares to the same test with the > default 16 page pipe size? With the default 64k pipe size it's about 4 times slower than with a pipe size of 1MB. Miklos -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>