lkml.org 
[lkml]   [2012]   [Jul]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    SubjectRe: PROBLEM: Performance drop
    From
    Sorry, of course the commit I backed out was :
    9bcb8118965ab4631a65ee0726e6518f75cda6c5.

    On Sat, Jul 7, 2012 at9bcb8118965ab4631a65ee0726e6518f75cda6c5. 3:40
    PM, Jason Vas Dias <jason.vas.dias@gmail.com> wrote:
    > I can confirm that the AMD Turion X2 2.2Ghz HP Compaq 6715b
    > "business" x86_64 k8 dual-core laptops circa 2007
    > DO get stuck in 800Khz mode and cannot switch out of it after booting
    > the "stable" "v3.4.4" tagged kernel.
    >
    > I followed the containing post and reverted commit
    > ff74ae50f01ee67764564815c023c362c87ce18b :
    >
    > Commit d51cdad33bb5bb370c05129f7c7f3a16a55eff40
    > Author: root <root@jvdspc.localdomain>
    > Date: Fri Jul 6 18:57:03 2012 +0000
    >
    > Revert "ACPI: Evaluate thermal trip points before reading temperature"
    >
    > This reverts commit 9bcb8118965ab4631a65ee0726e6518f75cda6c5.
    >
    > commit ff74ae50f01ee67764564815c023c362c87ce18b
    > Author: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    > Date: Fri Jun 22 11:37:50 2012 -0700
    >
    > And wow ! what a difference - back to a circa 2007 machine versus a
    > circa 1987 machine.
    >
    > Not too many of us left around trying to run the latest version of
    > linux on nearly 5-year-old hardware I guess, but still -
    > please can you restore correct Linux cpufreq & thermal operation on
    > old-style AMD k8 CPUs ?
    > They do seem to depend on the temperature being set BEFORE 1st entry .
    >
    > Thanks & Regards,
    > Jason Vas Dias (a Software Engineer) <jason.vas.dias@gmail.com>
    >
    >
    > On Wed, May 30, 2012 at 1:43 PM, Andreas Herrmann
    > <herrmann.der.user@googlemail.com> wrote:
    >> On Wed, May 30, 2012 at 03:20:27AM +0700, Comrade DOS wrote:
    >>> > Unfortunately you have used acpi=debug instead of apic=debug. So I
    >>> > can't compare I/O APIC configurations between the different test
    >>> > scenarios.
    >>>
    >>> Sorry me for this mistake.
    >>
    >> No problem.
    >>
    >> The logs show no difference in IO-APIC pin usage.
    >> So it's not the old problem ...
    >>
    >> Comparing both logs I found following differences:
    >>
    >> (Most other stuff seems just to be changed formatting.)
    >>
    >> -ACPI: Thermal Zone [TZ1] (67 C)
    >> +ACPI: Thermal Zone [TZ1] (62 C)
    >>
    >> I think what's shown is the temperature value which just differed
    >> between the boots. But that made me look at acpi/thermal.c where the
    >> messages came from. The only change between 3.3 and 3.4 is this
    >> commit:
    >>
    >> commit 9bcb8118965ab4631a65ee0726e6518f75cda6c5
    >> Author: Matthew Garrett <mjg@redhat.com>
    >> Date: Wed Feb 1 10:26:54 2012 -0500
    >>
    >> ACPI: Evaluate thermal trip points before reading temperature
    >>
    >> I'd suggest to do a test with this patch reverted. Maybe this change
    >> to fix issues with one HP Laptop (re-)intruduced the trouble with your
    >> system.
    >>
    >> If reverting the patch helps we have to take a closer look at your
    >> ACPI tables. So can you please do a
    >>
    >> # git revert 9bcb8118965ab4631a65ee0726e6518f75cda6c5
    >>
    >> on top of v3.4 and rebuid your kernel and rerun your test (with
    >> apic=debug. This allows easier diff to dmesg output of your previous
    >> test runs).
    >>
    >> In any case it also would be good to have the acpi tables from your
    >> system. So please also use
    >> # acpidump >acpidump.3.3 (using the 3.3.x kernel)
    >> # acpidump >acpidump.3.4 (using the unmodified 3.4 version)
    >>
    >> and send all files as attachments to your mail.
    >>
    >> This will allow me to look at your thermal zone definitions in the
    >> working and non-working case.
    >>
    >>
    >> Thanks,
    >>
    >> Andreas
    >> --
    >> 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/


    \
     
     \ /
      Last update: 2012-07-07 17:21    [W:0.029 / U:61.164 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site