Re: dump cache performance

2010-10-27 Thread Dag-Erling Smørgrav
Peter Jeremy peterjer...@acm.org writes: I've mostly convered to ZFS but still have UFS root (which is basically a full base install without /var but including /usr/src - 94k inodes and 1.7GB). I've run both the 8-stable (stable) and patched (jfd) dump alternately 4 times with 50/250MB cache

Re: dump cache performance

2010-10-27 Thread Peter Jeremy
On 2010-Oct-27 20:17:06 +0200, Dag-Erling Smørgrav d...@des.no wrote: Peter Jeremy peterjer...@acm.org writes: I've mostly convered to ZFS but still have UFS root (which is basically a full base install without /var but including /usr/src - 94k inodes and 1.7GB). I've run both the 8-stable

Re: dump cache performance

2010-10-27 Thread Dag-Erling Smørgrav
Peter Jeremy peterjer...@acm.org writes: Dag-Erling Smørgrav d...@des.no wrote: 9413 what? Puppies? Ooops, sorry - KB/sec as reported in the dump summary. Thank you :) DES -- Dag-Erling Smørgrav - d...@des.no ___ freebsd-hackers@freebsd.org

Re: dump cache performance

2010-10-25 Thread Peter Jeremy
On 2010-Oct-24 18:05:05 +0200, Jean-Francois Dockes j...@dockes.org wrote: It appears that modifying dump to use a shared cache in a very simple way (move the control structures to the shared segment and perform simple locking) yields substantial speed increases. Indeed. That's better than I

dump cache performance

2010-10-24 Thread Jean-Francois Dockes
Hello, I took a look at the cache management for the dump command project on the freebsd.org project ideas page. http://www.freebsd.org/projects/ideas/ideas.html#p-extenddump It appears that modifying dump to use a shared cache in a very simple way (move the control structures to the shared