On 24 August 2012 14:58, Jan Owoc <[email protected]> wrote: > How are you generating these writes? Are they maybe small files over a > wireless network? If so, what if you generated the I/O using: > dd if=/dev/zero of=/Backups/zero.file
seems the slow write performance appears regardless of the workload, but in the instance there it was the rsync of a 30gb SQL database dump over gigabit ethernet > Is this behaviour new, or did you change anything recently? (Did you > really copy over all those GBs at 2MB/s?) I'm going to rule out > underpowered system, since even an Atom should be able to do sha256 > checksums and parity calculations faster than 2 MB/s. this is basically a new instance of OIa5, the performance has always been slow. it's an athlon x2 3000+ machine, reasonably powered, and yes, copies have been taking a LOONG time :( it does only have 1GB of ram, and i know that will limit rsync performance but really, not down to 2MB/s surely. also top shows the following, it's not paging out. load averages: 0.30, 0.30, 0.29; up 1+03:46:45 20:21:59 53 processes: 52 sleeping, 1 on cpu CPU states: 77.2% idle, 1.0% user, 21.8% kernel, 0.0% iowait, 0.0% swap Kernel: 2625 ctxsw, 32 trap, 2106 intr, 2997 syscall, 4 flt Memory: 991M phys mem, 86M free mem, 495M total swap, 489M free swap -- Kind regards, Jules <golgy> whats so wrong with plumb? <hoolio> nothing, in itself. it's just for me, knowing what it means infers i cannot any longer pretend to not be a complete square when it comes to computers <Gryphon> I don't know that knowing anything about plumb turns you into a nerd, but this conversation already has <hoolio> are you calling me nerdy? <checkers> hoolio: you know what initramfs means, AND does. You're lost to the non-geek world already <Gryphon> yes <hoolio> hrm <hoolio> goodbye cruel world. _______________________________________________ OpenIndiana-discuss mailing list [email protected] http://openindiana.org/mailman/listinfo/openindiana-discuss
