On Tue, Aug 16, 2011 at 06:03:00PM -0400, Mikulas Patocka wrote: > The working set is 2% of memory or 1/4 of vmalloc space (whichever is > smaller). This can be changed in > "/sys/module/dm_bufio/parameters/dm_bufio_cache_size". > > Buffers are freed when they are unused for 60 seconds (can be changed in > "/sys/module/dm_bufio/parameters/dm_bufio_max_age"). > > Total size is divided by the number of active clients using dm-bufio. So > that each client gets a fair share. > > Writeback is done on commit. When 3/4 of the cache size is used, > background writeback is started. This all sounds good; get the locking interface in and I'll switch to bufio straight away. - Joe -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
