Re: CVS commit: src/sbin/mount
On Sat, Oct 24, 2020 at 10:51:34AM +, Nia Alarie wrote: > Modified Files: > src/sbin/mount: mount.8 > > Log Message: > file systems that are used as what spools? Kibozing caches. -- David A. Holland dholl...@netbsd.org
Re: CVS commit: src/sys/arch/sparc64/dev
Hi Tobias, > If you're interested there is an older version[1] of envctrl in the > Attic that might be relevant to use for reference. It supported fan > speed controls on E450. IIRC I got some of the magic constants from > OpenSolaris. Sadly I don't own an E450 any more. > > [1] > cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/arch/sparc64/dev/Attic/envctrl.c?rev=1.11=text/plain_with_tag=MAIN Thank you - that's useful information! Related to the magic offsets, I noticed that the value read from the sensor was always lower than the value written. However, it doesn't appear to be a constant difference (I see about 15 for most values, but only 5 for the minimum). I think that it's OK to keep the higher value - it'll mean that we run the fans slightly faster. The CPU temperature on my E250 doesn't reach the minimum threshold where the fan speed actually increases, so I don't think that this will have any impact. The GPIO values there helps to see what values I should be checking for too. It would be good to merge this with the current code, but I only have an E250 to test on, so I'll need to find a volunteer. Regards, Julian
Re: CVS commit: src/sys/arch/sparc64/dev
On Sat, 24 Oct 2020 15:16:39 + Julian Coleman wrote: > Module Name: src > Committed By: jdc > Date: Sat Oct 24 15:16:39 UTC 2020 > > Modified Files: > src/sys/arch/sparc64/dev: pcf8591_envctrl.c > > Log Message: > Add support for automatically changing the CPU fan speed on the E250 in a > similar way to the SB1000/SB2000. > The fan control information was determined by experiment, as it's only > partially available in OFW. > Hardcode the missing information for E250 fan control into the driver > (it should be possible to support the E450 in future too). If you're interested there is an older version[1] of envctrl in the Attic that might be relevant to use for reference. It supported fan speed controls on E450. IIRC I got some of the magic constants from OpenSolaris. Sadly I don't own an E450 any more. [1] cvsweb.netbsd.org/bsdweb.cgi/~checkout~/src/sys/arch/sparc64/dev/Attic/envctrl.c?rev=1.11=text/plain_with_tag=MAIN
Re: CVS commit: src/sbin/mount
Date:Sat, 24 Oct 2020 10:51:34 + From:"Nia Alarie" Message-ID: <20201024105134.6539bf...@cvs.netbsd.org> | file systems that are used as what spools? Ah, youth! The old text: This option is useful for optimizing read performance on file systems that are used as news spools. was refering to netnews (usenet, NNTP or whatever). Such a filesystem is almost certainly not going to care about access times (this is about uses for the noatime flag, to save others needing to go look at what changed) as the news articles are referenced by large numbers of news readers, and outgoing feeds, and when any of that happened is of no interest to the server or its maintainers, at all - but it happens (or happened, when usenet was a big thing) a lot, and not bothering to update the access times could mean a lot of unnecessary writes to an already very busy filesystem. All that said, note that I am not objecting to the change (referring to flash based filesystems rather than news spools) it is a little more currently relevant. kre
