Messages in this thread |  | | Date | Fri, 28 Sep 2001 15:33:01 -0700 | From | Mike Fedyk <> | Subject | Re: Tools better than vmstat [was: 2.4.9-ac16 good perfomer?] |
| |
On Fri, Sep 28, 2001 at 11:00:34PM +0100, Russell King wrote: > On Fri, Sep 28, 2001 at 02:53:24PM -0700, Mike Fedyk wrote: > > Is there any possibility of using Russell's patch for this user space tool? > > There is one property the kernel space method has over any user space > tool on a UP machine (and conceivably a SMP machine with more code) - > you get a complete atomic snapshot of the VM state. Might be useful > and important, but might not be. >
Actually, I was suggesting a combined kernel and user space design.
/proc/vm-page-ages would give all of the gory numbers in an atomic way, and vm-page-stat would distil that into the percentages much like vmstat output...
> It would be pretty easy to change my kernel patch to produce what you're > requesting, from another sysrq key combination. >
Is sysrq easier to code for, or initiate-on-proc-read?
I'm just sorry I don't know enough C to do this myself... :( - 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/
|  |