Messages in this thread | | | Date | Wed, 25 Jan 2006 21:24:19 -0800 | From | Greg KH <> | Subject | Re: [PATCH 3/6] 2.6.16-rc1 perfmon2 patch for review |
| |
On Wed, Jan 25, 2006 at 08:55:10PM -0800, Stephane Eranian wrote: > Greg, > > On Wed, Jan 25, 2006 at 03:52:04PM -0800, Greg KH wrote: > > On Wed, Jan 25, 2006 at 12:08:13PM -0800, Bryan O'Sullivan wrote: > > > On Tue, 2006-01-24 at 07:09 -0800, Stephane Eranian wrote: > > > > > > > Because I tried regrouping all the /proc AND related interface into a single > > > > C file. > > > > > > sysctls seem to be every bit as deprecated as /proc for what you are > > > tring to do. > > > > > > > Well, it is not clear to me what criteria is used for /sys vs /proc. > > > > > > My understanding is that only process-related stuff belongs in /proc > > > now. Other random cruft that has accumulated over the years is left > > > there for backwards compatibility, but /sys interfaces are the way > > > forward now. > > > > Yes, that is exactly right. > > > I don't have a problem moving the perfmon stuff to /sys, except for > /proc/perfmon which is already being used by a bunch of tools. Unless > we duplicate the information or use a simlink (if that's possible).
symlink will not work, sorry.
> Please indicate a location in the /sys tree where these would fit: > > /proc/perfmon > /proc/perfmon_map
What are the contents of these files?
> These are currently sysctl(): > > /proc/sys/kernel/perfmon/arg_size_max > /proc/sys/kernel/perfmon/debug > /proc/sys/kernel/perfmon/debug_ovfl > /proc/sys/kernel/perfmon/expert_mode > /proc/sys/kernel/perfmon/reset_stats > /proc/sys/kernel/perfmon/smpl_buf_size_max > /proc/sys/kernel/perfmon/sys_group > /proc/sys/kernel/perfmon/task_group >
What are the contents of these different files?
Remember that sysfs is one value per file, so sysctls translate usually very easily to sysfs files.
You can always just use /sys/kernel/perfmon/ if you like, as I don't think you are bound to anything that would be in the /sys/devices tree (you don't export per-cpu statistics, right?)
Hope this helps,
greg k-h - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |