Hello Andres,
On Tue, Apr 19, 2016 at 10:07:29AM -0700, Andres Lagar-Cavilla wrote:
> Andrea, we provide the, ahem, adjustments to
> transparent_hugepage_adjust. Rest assured we aggressively use mmu
> notifiers with no further changes required.
Did you notice I just fixed a THP related bug in the
On Mon, Apr 25, 2016 at 9:30 PM, Andres Lagar-Cavilla
wrote:
>>
>> We are using kvm + tmpfs to do qemu live upgrading, how does google
>> use this memory model ?
>> I think our pupose to use tmpfs may be the same.
>
> Nothing our of the ordinary. Guest memory is an mmap of a tmpfs fd.
> Huge tmpfs
On Sat, Apr 23, 2016 at 10:46 PM, Wincy Van wrote:
> On Wed, Apr 20, 2016 at 1:07 AM, Andres Lagar-Cavilla
> wrote:
>> Andrea, we provide the, ahem, adjustments to
>> transparent_hugepage_adjust. Rest assured we aggressively use mmu
>> notifiers with no further changes required.
>>
>> As in: zero
On Wed, Apr 20, 2016 at 1:07 AM, Andres Lagar-Cavilla
wrote:
> Andrea, we provide the, ahem, adjustments to
> transparent_hugepage_adjust. Rest assured we aggressively use mmu
> notifiers with no further changes required.
>
> As in: zero changes have been required in the lifetime (years) of
> kvm+
On Mon, 18 Apr 2016, Shi, Yang wrote:
> Hi Kirill,
>
> Finally, I got some time to look into and try yours and Hugh's patches, got
Thank you.
> two problems.
>
> 1. A quick boot up test on my ARM64 machine with your v7 tree shows some
> unexpected error:
>
> systemd-journald[285]: Failed to s
On 4/19/2016 9:50 AM, Andrea Arcangeli wrote:
Hello,
On Mon, Apr 18, 2016 at 03:55:44PM -0700, Shi, Yang wrote:
Hi Kirill,
Finally, I got some time to look into and try yours and Hugh's patches,
got two problems.
One thing that come to mind to test is this: qemu with -machine
accel=kvm -mem-
Andrea, we provide the, ahem, adjustments to
transparent_hugepage_adjust. Rest assured we aggressively use mmu
notifiers with no further changes required.
As in: zero changes have been required in the lifetime (years) of
kvm+huge tmpfs at Google, other than mod'ing
transparent_hugepage_adjust.
As
Hello,
On Mon, Apr 18, 2016 at 03:55:44PM -0700, Shi, Yang wrote:
> Hi Kirill,
>
> Finally, I got some time to look into and try yours and Hugh's patches,
> got two problems.
One thing that come to mind to test is this: qemu with -machine
accel=kvm -mem-path=/dev/shm/,share=on .
The THP Compou
On 4/19/2016 7:33 AM, Jerome Marchand wrote:
On 04/19/2016 12:55 AM, Shi, Yang wrote:
2. I ran my THP test (generated a program with 4MB text section) on both
x86-64 and ARM64 with yours and Hugh's patches (linux-next tree), I got
the program execution time reduced by ~12% on x86-64, it looks ve
On 04/19/2016 12:55 AM, Shi, Yang wrote:
> 2. I ran my THP test (generated a program with 4MB text section) on both
> x86-64 and ARM64 with yours and Hugh's patches (linux-next tree), I got
> the program execution time reduced by ~12% on x86-64, it looks very
> impressive.
>
> But, on ARM64, there
Hi Kirill,
Finally, I got some time to look into and try yours and Hugh's patches,
got two problems.
1. A quick boot up test on my ARM64 machine with your v7 tree shows some
unexpected error:
systemd-journald[285]: Failed to save stream data
/run/systemd/journal/streams/8:16863: No space l
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