Re: turning off COMPAT_386BSD_MBRPART in disklabel

2011-02-02 Thread David Laight
On Thu, Feb 03, 2011 at 02:56:35AM +, David Holland wrote: > On Mon, Jan 31, 2011 at 05:40:20PM +0100, Matthias Drochner wrote: > > > PR 44496 notes that COMPAT_386BSD_MBRPART is still enabled in > > > disklabel(8), even though it was turned off by default in the kernel > > > early in 4.99.x

Re: turning off COMPAT_386BSD_MBRPART in disklabel

2011-02-02 Thread David Laight
On Thu, Feb 03, 2011 at 02:56:35AM +, David Holland wrote: > > ...also, it's not entirely clear to me what the code is supposed to be > doing if there are multiple NetBSD partitions; it looks as if what it > *will* do is use the label from the one it sees last and write the > same label to all

Re: turning off COMPAT_386BSD_MBRPART in disklabel

2011-02-02 Thread David Holland
On Mon, Jan 31, 2011 at 05:40:20PM +0100, Matthias Drochner wrote: > > PR 44496 notes that COMPAT_386BSD_MBRPART is still enabled in > > disklabel(8), even though it was turned off by default in the kernel > > early in 4.99.x. The PR also notes that it's not harmless to leave it > > on. > >

Re: mpt Serious performance issues

2011-02-02 Thread Thor Lancelot Simon
On Wed, Feb 02, 2011 at 11:29:47AM +0100, Stephan wrote: > It seems that if one waits a while after writing some data the read > speed isn?t that bad. I do a > > find / -exec cat {} \; > /dev/null & > > and monitor the read speed with "sysstat vm". It is around 60 - 70 > MB/s. This strengthens th

Re: mpt Serious performance issues

2011-02-02 Thread Stephan
It seems that if one waits a while after writing some data the read speed isn´t that bad. I do a find / -exec cat {} \; > /dev/null & and monitor the read speed with "sysstat vm". It is around 60 - 70 MB/s. This strengthens the suspicion that write caching isn´t working.

Re: mpt Serious performance issues

2011-02-02 Thread Stephan
Hi all, some new findings: I´ve added some debug statements to the driver while only vaguely knowing what I am doing... mpt0 at pci2 dev 5 function 0: vendor 0x1000 product 0x0030 mpt0: interrupting at ioapic1 pin 1 mpt0: DEBUG: Reading MPI_CONFIG_PAGETYPE_RAID_VOLUME 0 Header mpt0: DEBUG: Secuss