On 1/12/07, Linus Torvalds <[EMAIL PROTECTED]> wrote:
On Thu, 11 Jan 2007, Roy Huang wrote:
>
> On a embedded systerm, limiting page cache can relieve memory
> fragmentation. There is a patch against 2.6.19, which limit every
> opened file page cache and total pagecache. When the limit reach, i
Here is the newest patch against 2.6.20-rc5.
==
From ad9ca9a32bdcaddce9988afbf0187bfd04685a0c Mon Sep 17 00:00:00 2001
From: Aubrey.Li <[EMAIL PROTECTED]>
Date: Thu, 18 Jan 2007 11:08:31 +0800
Subject: [PATCH] Add an interface to limit total vf
On 1/19/07, Vaidyanathan Srinivasan <[EMAIL PROTECTED]> wrote:
Hi Aubrey,
I used your patch on my PPC64 box and I do not get expected
behavior. As you had requested, I am attaching zoneinfo and meminfo
dumps:
Please let me know if you need any further data to help me out with
the test/experim
On 1/19/07, Vaidyanathan Srinivasan <[EMAIL PROTECTED]> wrote:
Hi Aubrey,
The idea of creating separate flag for pagecache in page_alloc is
interesting. The good part is that you flag watermark low and the
zone reclaimer will do the rest of the job.
However when the zone reclaimer starts to
On 1/20/07, Vaidyanathan Srinivasan <[EMAIL PROTECTED]> wrote:
Aubrey Li wrote:
> On 1/19/07, Vaidyanathan Srinivasan <[EMAIL PROTECTED]> wrote:
>>
>> Hi Aubrey,
>>
>> The idea of creating separate flag for pagecache in page_alloc is
>> interesti
On 1/20/07, Nick Piggin <[EMAIL PROTECTED]> wrote:
Aubrey Li wrote:
> On 1/20/07, Vaidyanathan Srinivasan <[EMAIL PROTECTED]> wrote:
>> If pagecache is overlimit, we expect old (cold) pagecache pages to
>> be thrown out and reused for new file data. We do not expe
On 1/20/07, Nick Piggin <[EMAIL PROTECTED]> wrote:
Aubrey Li wrote:
> So what's the right way to limit pagecache?
Probably something a lot more complicated... if you can say there
is a "right way".
>> Secondly, your patch isn't actually very good. It uncondi
On 1/24/07, Christoph Lameter <[EMAIL PROTECTED]> wrote:
On Wed, 24 Jan 2007, Nick Piggin wrote:
> > 1. Insure that anonymous pages that may contain performance
> >critical data is never subject to swap.
> >
> > 2. Insure rapid turnaround of pages in the cache.
>
> So if these two aren't wor
Christoph's patch is better than mine. The only thing I think is that
zone->max_pagecache_pages should be checked never less than
zone->pages_low.
The good part of the patch is using the existing reclaimer. But the
problem in my opinion of the idea is the existing reclaimer too. Think
of when vf
On 1/24/07, Vaidyanathan Srinivasan <[EMAIL PROTECTED]> wrote:
Aubrey Li wrote:
> On 1/19/07, Vaidyanathan Srinivasan <[EMAIL PROTECTED]> wrote:
>> Hi Aubrey,
>>
>> I used your patch on my PPC64 box and I do not get expected
>> behavior. As you had
On 1/24/07, Peter Zijlstra <[EMAIL PROTECTED]> wrote:
On Tue, 2007-01-23 at 16:49 -0800, Christoph Lameter wrote:
> This is a patch using some of Aubrey's work plugging it in what is IMHO
> the right way. Feel free to improve on it. I have gotten repeatedly
> requests to be able to limit the page
On 1/24/07, Peter Zijlstra <[EMAIL PROTECTED]> wrote:
On Wed, 2007-01-24 at 22:22 +0800, Aubrey Li wrote:
> On 1/24/07, Peter Zijlstra <[EMAIL PROTECTED]> wrote:
> > On Tue, 2007-01-23 at 16:49 -0800, Christoph Lameter wrote:
> > > This is a patch using some of Aub
On 1/25/07, Vaidyanathan Srinivasan <[EMAIL PROTECTED]> wrote:
Christoph Lameter wrote:
> On Wed, 24 Jan 2007, Vaidyanathan Srinivasan wrote:
>
>> With your patch, MMAP of a file that will cross the pagecache limit hangs the
>> system. As I mentioned in my previous mail, without subtracting th
Hi Alan,
On 2/5/07, Alan <[EMAIL PROTECTED]> wrote:
Likewise - why this not locks ?
Other than the locking bits looks ok, although has rather a lot of ifdefs
Thanks to point it out. It should be fixed in the coming patch.
Thanks,
-Aubrey
-
To unsubscribe from this list: send the line "unsu
On 2/6/07, Russell King <[EMAIL PROTECTED]> wrote:
I think you have a bit of work to do on this driver; it seems to be
missing all termios handling apart from setting the baud rate.
Yes, only baud rate setting is enabled. We'll implement others in future.
Moreover, it's re-using the 8250 driv
On 2/8/07, Russell King <[EMAIL PROTECTED]> wrote:
On Wed, Feb 07, 2007 at 06:49:58PM +0800, Wu, Bryan wrote:
> Thanks Russell's review, we update the serial core driver according to
> Russell's comments. Here is the change log:
>
> a) use "ttyBF" as blackfin serial name and use new serial major
I insert one printk into drivers/serial/serial_core.c:
uart_set_termios() to describe the issue.
static void uart_set_termios(struct tty_struct *tty, struct termios
*old_termios)
{
snip
unsigned int cflag = tty->termios->c_cflag;
BUG_ON(!kernel_locked());
+++printk("new_term
On 2/1/07, Alan <[EMAIL PROTECTED]> wrote:
> When I telnet my board and run the following command:
> root:~> stty -F /dev/ttyS0 -crtscts
>
> I got the following result from the console of my board:
> root:~>new_termios flag: 0x1cb1, old_termios flag: 0x80001cb1
>
> That's correct. CRTSC
On 2/1/07, Russell King <[EMAIL PROTECTED]> wrote:
On Thu, Feb 01, 2007 at 10:33:40AM +0800, Aubrey Li wrote:
> On 2/1/07, Alan <[EMAIL PROTECTED]> wrote:
> >What code is running on that console at the time. Most likely that user
> >code is also saving/restoring ter
On 2/1/07, Tosoni <[EMAIL PROTECTED]> wrote:
If I understand Alan'answer correctly:
You appear to use a *shell* on that console. The shell gets your ENTER key
and in the succeeding processing the shell resets the crtscts flag to what
the shell thinks is right for him.
The shell must make some t
On 2/1/07, Russell King <[EMAIL PROTECTED]> wrote:
On Thu, Feb 01, 2007 at 06:09:24PM +0800, Aubrey Li wrote:
> On 2/1/07, Russell King <[EMAIL PROTECTED]> wrote:
> >On Thu, Feb 01, 2007 at 10:33:40AM +0800, Aubrey Li wrote:
> >> On 2/1/07, Alan <[EMAIL PROT
On 5/23/07, Christoph Lameter <[EMAIL PROTECTED]> wrote:
On Mon, 21 May 2007, Bernhard Walle wrote:
> [PATCH] [scsi] Remove __GFP_DMA
>
> After 821de3a27bf33f11ec878562577c586cd5f83c64, it's not necessary to alloate
a
> DMA buffer any more in sd.c.
>
> Signed-off-by: Bernhard Walle <[EMAIL PROT
Thanks.
Acked-by: Aubrey Li <[EMAIL PROTECTED]>
On 5/24/07, Alan Cox <[EMAIL PROTECTED]> wrote:
Add the needed definitions to activate arbitary speed support on the
blackfin platform.
Signed-off-by: Alan Cox <[EMAIL PROTECTED]>
diff -u --new-file --recursive --exclude-fro
On 4/12/07, Stephen Hemminger <[EMAIL PROTECTED]> wrote:
Aubrey Li wrote:
> I think we discussed this issue before.
>
> The current checksum function doesn't consider the kind of packet
> which is padded to reach a specific minimum length. I believe that's
>
In net poll mode, the current checksum function doesn't consider the
kind of packet which is padded to reach a specific minimum length. I
believe that's the problem causing my test case failed. The following
patch fixed this issue.
Signed-off-by: Aubrey.Li <[EMAIL PROTECTED]>
---
net/core/netpoll
On 4/11/07, Robin Getz <[EMAIL PROTECTED]> wrote:
On Tue 10 Apr 2007 08:55, David Howells pondered:
> Looking at alloc_pg_vec() in af_packet.c, I will place my bets on the
> latter case. I don't know that this is a problem; it depends on how things
> work, and that I don't know offhand. If some
On 4/18/07, David Howells <[EMAIL PROTECTED]> wrote:
Aubrey Li <[EMAIL PROTECTED]> wrote:
> Here, in the attachment I wrote a small test app. Please correct if
> there is anything wrong, and feel free to improve it.
Okay... I have that working... probably. I don'
On 4/18/07, David Howells <[EMAIL PROTECTED]> wrote:
Aubrey Li <[EMAIL PROTECTED]> wrote:
> Here, in the attachment I wrote a small test app. Please correct if
> there is anything wrong, and feel free to improve it.
Okay... I have that working... probably. I don'
On 4/20/07, David Howells <[EMAIL PROTECTED]> wrote:
Aubrey Li <[EMAIL PROTECTED]> wrote:
> The patch works properly on my side. But
> 1) I'm not sure why you re-wrote alloc/free_pg_vec function, doesn't
> the current implement work for NOMMU? I know you wan
On 4/20/07, David Howells <[EMAIL PROTECTED]> wrote:
Aubrey Li <[EMAIL PROTECTED]> wrote:
> as checked in packet_set_ring, buffer size must be a multiple of PAGE_SIZE,
> packet_set_ring
> if (unlikely(req->tp_block_size &
The option CONFIG_PACKET_MMAP should depend on MMU.
Signed-off-by: Aubrey.Li <[EMAIL PROTECTED]>
---
net/packet/Kconfig |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/net/packet/Kconfig b/net/packet/Kconfig
index 34ff93f..959c272 100644
--- a/net/packet/Kconfig
+++ b/net
I think we discussed this issue before.
The current checksum function doesn't consider the kind of packet
which is padded to reach a specific minimum length. I believe that's
the problem caused my test case failed. Is this issue fixed? Or is it
acceptable if I make a patch not calculating this ki
On 3/4/07, Arnd Bergmann <[EMAIL PROTECTED]> wrote:
On Thursday 01 March 2007 05:14:40 Wu, Bryan wrote:
> Here is the update version of blackfin-arch.patch in -mm tree.
> simply add support to utrace and it was tested on blackfin STAMP board
> as well as other following patches.
Wow, this has co
On 3/6/07, Vaidyanathan Srinivasan <[EMAIL PROTECTED]> wrote:
The reclaim code is similar to RSS memory controller. Scan control is
slightly different since we are targeting different type of pages.
Additionally no mapped pages are touched when scanning for pagecache pages.
RSS memory control
On 3/27/07, Vaidyanathan Srinivasan <[EMAIL PROTECTED]> wrote:
Correct, shrink_page_list() is called from shrink_inactive_list() but
the above code is patched in shrink_active_list(). The
'force_reclaim_mapped' label is from function shrink_active_list() and
not in shrink_page_list() as it may s
On 3/27/07, Vaidyanathan Srinivasan <[EMAIL PROTECTED]> wrote:
Aubrey Li wrote:
> On 3/27/07, Vaidyanathan Srinivasan <[EMAIL PROTECTED]> wrote:
>> Correct, shrink_page_list() is called from shrink_inactive_list() but
>> the above code is patched in
When register serial driver as a console, the driver function
my_remove()
my_shutdown()
seems be never called.
So the driver can't reclaim resource when the command "reboot" is issued.
Is it intended?
-Aubrey
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the bod
On 3/30/07, Lee Revell <[EMAIL PROTECTED]> wrote:
On 3/29/07, Aubrey Li <[EMAIL PROTECTED]> wrote:
> When register serial driver as a console, the driver function
>
> my_remove()
> my_shutdown()
>
> seems be never called.
>
> So the driver can't recl
On 3/30/07, David Howells <[EMAIL PROTECTED]> wrote:
Wu, Bryan <[EMAIL PROTECTED]> wrote:
> It takes lots of time in malloc()->mmap()->do_mmap_private()->memset(). When
> malloc a big area, memset() the area to zero makes the performance very bad.
Ummm...
How do you then cope with attempting t
On 3/30/07, David Howells <[EMAIL PROTECTED]> wrote:
Aubrey Li <[EMAIL PROTECTED]> wrote:
> malloc() allocates size bytes and returns a pointer to the allocated memory.
> The memory is not cleared.
But this is *not* malloc(). It's mmap(). Are you prepared to g
On 3/30/07, Alan Cox <[EMAIL PROTECTED]> wrote:
> I can't find mmap must give zeroed memory in the mmap manual.
> Is there any reason relying on anon mmap() giving zerod memory?
Its how all Unix/Linux like systems behave.
Fair enough.
You have to clear the memory
to something to deal with se
On 3/30/07, David Howells <[EMAIL PROTECTED]> wrote:
Aubrey Li <[EMAIL PROTECTED]> wrote:
> Keep the same behave as MMU but with bad performance, or keep the same
> performance as MMU but without the same behave, Which one is more
> important?
The thing to do is to pas
immediately, but requires 3
consecutive context switches with no usage to clear it. This decay is
required because of AVX-512 using tasks could set Hi16_ZMM state back
to the init state themselves.
Signed-off-by: Aubrey Li
Cc: Peter Zijlstra
Cc: Andi Kleen
Cc: Tim Chen
Cc: Dave Hansen
Cc: Arjan van
Add a /proc//arch_state interface to expose per-task cpu specific
state values.
Exposing AVX-512 Hi16_ZMM registers usage is for the user space job
scheduler to cluster AVX-512 using tasks together, because these tasks
could cause core turbo frequency drop.
Signed-off-by: Aubrey Li
Cc: Peter
.
Signed-off-by: Aubrey Li
Cc: Peter Zijlstra
Cc: Andi Kleen
Cc: Tim Chen
Cc: Dave Hansen
Cc: Arjan van de Ven
---
arch/x86/include/asm/fpu/internal.h | 7 +++
arch/x86/include/asm/fpu/types.h| 7 +++
2 files changed, 14 insertions(+)
diff --git a/arch/x86/include/asm/fpu/internal.h
b
5,961 core_power.lvl2_turbo_license
1.004031387 seconds time elapsed
Non-zero counter value confirms that the task causes frequency drop.
Signed-off-by: Aubrey Li
Cc: Peter Zijlstra
Cc: Andi Kleen
Cc: Tim Chen
Cc: Dave Hansen
Cc: Arjan van de Ven
---
arch/x86/kernel/fpu/xstate.c | 34 +++
Added AVX512_elapsed_ms in /proc//status. Report it
in Documentation/filesystems/proc.txt
Signed-off-by: Aubrey Li
Cc: Peter Zijlstra
Cc: Andi Kleen
Cc: Tim Chen
Cc: Dave Hansen
Cc: Arjan van de Ven
---
Documentation/filesystems/proc.txt | 4 +++-
1 file changed, 3 insertions(+), 1
Added AVX512_elapsed_ms in /proc//status. Report it
in Documentation/filesystems/proc.txt
Signed-off-by: Aubrey Li
Cc: Peter Zijlstra
Cc: Andi Kleen
Cc: Tim Chen
Cc: Dave Hansen
Cc: Arjan van de Ven
---
Documentation/filesystems/proc.txt | 4 +++-
1 file changed, 3 insertions(+), 1
5,961 core_power.lvl2_turbo_license
1.004031387 seconds time elapsed
Non-zero counter value confirms that the task causes frequency drop.
Signed-off-by: Aubrey Li
Cc: Peter Zijlstra
Cc: Andi Kleen
Cc: Tim Chen
Cc: Dave Hansen
Cc: Arjan van de Ven
---
arch/x86/kernel/fpu/xstate.c | 34 +++
.
Signed-off-by: Aubrey Li
Cc: Peter Zijlstra
Cc: Andi Kleen
Cc: Tim Chen
Cc: Dave Hansen
Cc: Arjan van de Ven
---
arch/x86/include/asm/fpu/internal.h | 7 +++
arch/x86/include/asm/fpu/types.h| 7 +++
2 files changed, 14 insertions(+)
diff --git a/arch/x86/include/asm/fpu/internal.h
b
Added AVX512_elapsed_ms in /proc//status. Report it
in Documentation/filesystems/proc.txt
Signed-off-by: Aubrey Li
Cc: Peter Zijlstra
Cc: Andi Kleen
Cc: Tim Chen
Cc: Dave Hansen
Cc: Arjan van de Ven
---
Documentation/filesystems/proc.txt | 4 +++-
1 file changed, 3 insertions(+), 1
5,961 core_power.lvl2_turbo_license
1.004031387 seconds time elapsed
Non-zero counter value confirms that the task causes frequency drop.
Signed-off-by: Aubrey Li
Cc: Peter Zijlstra
Cc: Andi Kleen
Cc: Tim Chen
Cc: Dave Hansen
Cc: Arjan van de Ven
---
arch/x86/kernel/fpu/xstate.c | 38 +
.
Signed-off-by: Aubrey Li
Cc: Peter Zijlstra
Cc: Andi Kleen
Cc: Tim Chen
Cc: Dave Hansen
Cc: Arjan van de Ven
---
arch/x86/include/asm/fpu/internal.h | 7 +++
arch/x86/include/asm/fpu/types.h| 7 +++
2 files changed, 14 insertions(+)
diff --git a/arch/x86/include/asm/fpu/internal.h
b
Added AVX512_elapsed_ms in /proc//status. Report it
in Documentation/filesystems/proc.txt
Signed-off-by: Aubrey Li
Cc: Peter Zijlstra
Cc: Andi Kleen
Cc: Tim Chen
Cc: Dave Hansen
Cc: Arjan van de Ven
---
Documentation/filesystems/proc.txt | 2 ++
1 file changed, 2 insertions(+)
diff --git
.
Signed-off-by: Aubrey Li
Cc: Peter Zijlstra
Cc: Andi Kleen
Cc: Tim Chen
Cc: Dave Hansen
Cc: Arjan van de Ven
---
arch/x86/include/asm/fpu/internal.h | 7 +++
arch/x86/include/asm/fpu/types.h| 7 +++
2 files changed, 14 insertions(+)
diff --git a/arch/x86/include/asm/fpu/internal.h
b
5,961 core_power.lvl2_turbo_license
1.004031387 seconds time elapsed
Non-zero counter value confirms that the task causes frequency drop.
Signed-off-by: Aubrey Li
Cc: Peter Zijlstra
Cc: Andi Kleen
Cc: Tim Chen
Cc: Dave Hansen
Cc: Arjan van de Ven
---
arch/x86/kernel/fpu/xstate.c | 34 +++
eck by:
$ perf stat --pid -e core_power.lvl2_turbo_license -- sleep 1
Performance counter stats for process id '3558':
3,251,565,961 core_power.lvl2_turbo_license
1.004031387 seconds time elapsed
Non-zero counter value confirms that the task causes frequency drop.
Signed-off-by: Aubre
real-world workloads like tensorflow and linpack.
If higher precision is required, suggest user space tools to use the
PMU-based mechanisms in combination.
Signed-off-by: Aubrey Li
Cc: Peter Zijlstra
Cc: Andi Kleen
Cc: Tim Chen
Cc: Dave Hansen
Cc: Arjan van de Ven
---
arch/x86/include/asm
.
Signed-off-by: Aubrey Li
Cc: Peter Zijlstra
Cc: Andi Kleen
Cc: Tim Chen
Cc: Arjan van de Ven
---
arch/x86/include/asm/fpu/internal.h | 97 +++--
arch/x86/include/asm/fpu/types.h| 17 +++
2 files changed, 88 insertions(+), 26 deletions(-)
diff --git a
Expose the per-task cpu specific thread state value, it's helpful
for userland to classify and schedule the tasks by different policies
Signed-off-by: Aubrey Li
Cc: Peter Zijlstra
Cc: Andi Kleen
Cc: Tim Chen
Cc: Arjan van de Ven
---
arch/x86/kernel/fpu/xstate.c | 13 +
fs
.
Signed-off-by: Aubrey Li
Cc: Peter Zijlstra
Cc: Andi Kleen
Cc: Tim Chen
Cc: Arjan van de Ven
---
arch/x86/include/asm/fpu/internal.h | 97 +++--
arch/x86/include/asm/fpu/types.h| 17 +++
2 files changed, 88 insertions(+), 26 deletions(-)
diff --git a
Expose the per-task cpu specific thread state value, it's helpful
for userland to classify and schedule the tasks by different policies
Signed-off-by: Aubrey Li
Cc: Peter Zijlstra
Cc: Andi Kleen
Cc: Tim Chen
Cc: Arjan van de Ven
---
arch/x86/kernel/fpu/xstate.c | 13 +
fs
x27;:
3,251,565,961 core_power.lvl2_turbo_license
1.004031387 seconds time elapsed
Non-zero counter value confirms that the task causes frequency drop.
Signed-off-by: Aubrey Li
Cc: Peter Zijlstra
Cc: Andi Kleen
Cc: Tim Chen
Cc: Dave Hansen
Cc: Arjan van de Ven
Cc: Linux API
Cc: Al
The architecture specific information of the running processes could
be useful to the userland. Add support to examine process architecture
specific information externally.
Signed-off-by: Aubrey Li
Cc: Peter Zijlstra
Cc: Andi Kleen
Cc: Tim Chen
Cc: Dave Hansen
Cc: Arjan van de Ven
Cc: Linux
Added AVX512_elapsed_ms in /proc//status. Report it
in Documentation/filesystems/proc.txt
Signed-off-by: Aubrey Li
Cc: Peter Zijlstra
Cc: Andi Kleen
Cc: Tim Chen
Cc: Dave Hansen
Cc: Arjan van de Ven
Cc: Linux API
Cc: Alexey Dobriyan
Cc: Andrew Morton
---
Documentation/filesystems
The architecture specific information of the running processes could
be useful to the userland. Add support to examine process architecture
specific information externally.
Signed-off-by: Aubrey Li
Cc: Peter Zijlstra
Cc: Andi Kleen
Cc: Tim Chen
Cc: Dave Hansen
Cc: Arjan van de Ven
Cc: Linux
Added AVX512_elapsed_ms in /proc//status. Report it
in Documentation/filesystems/proc.txt
Signed-off-by: Aubrey Li
Cc: Peter Zijlstra
Cc: Andi Kleen
Cc: Tim Chen
Cc: Dave Hansen
Cc: Arjan van de Ven
Cc: Linux API
Cc: Alexey Dobriyan
Cc: Andrew Morton
---
Documentation/filesystems
x27;:
3,251,565,961 core_power.lvl2_turbo_license
1.004031387 seconds time elapsed
Non-zero counter value confirms that the task causes frequency drop.
Signed-off-by: Aubrey Li
Cc: Peter Zijlstra
Cc: Andi Kleen
Cc: Tim Chen
Cc: Dave Hansen
Cc: Arjan van de Ven
Cc: Linux API
Cc: Al
Peter Zijlstra
> - Aaron Lu
> - Fixes a hard lockup in rq locking
> - Vineeth Pillai
> - Julien Desfossez
> - Fixes a performance issue seen on IO heavy workloads
> - Vineeth Pillai
> - Julien Desfossez
> - Fix for 32bit build
> - Aubrey Li
>
> Issues
>
On Wed, Apr 24, 2019 at 12:18 AM Vineeth Remanan Pillai
wrote:
>
> From: Peter Zijlstra (Intel)
>
> When a sibling is forced-idle to match the core-cookie; search for
> matching tasks to fill the core.
>
> Signed-off-by: Peter Zijlstra (Intel)
> ---
> include/linux/sched.h | 1 +
> kernel/sch
On Wed, Apr 24, 2019 at 12:18 AM Vineeth Remanan Pillai
wrote:
>
> Second iteration of the core-scheduling feature.
>
> This version fixes apparent bugs and performance issues in v1. This
> doesn't fully address the issue of core sharing between processes
> with different tags. Core sharing still
On Wed, Apr 24, 2019 at 10:00 PM Julien Desfossez
wrote:
>
> On 24-Apr-2019 09:13:10 PM, Aubrey Li wrote:
> > On Wed, Apr 24, 2019 at 12:18 AM Vineeth Remanan Pillai
> > wrote:
> > >
> > > Second iteration of the core-scheduling feature.
> > &g
Added /proc//arch_status file, and added AVX512_elapsed_ms in
/proc//arch_status. Report it in Documentation/filesystems/proc.txt
Signed-off-by: Aubrey Li
Cc: Thomas Gleixner
Cc: Peter Zijlstra
Cc: Andi Kleen
Cc: Tim Chen
Cc: Dave Hansen
Cc: Arjan van de Ven
Cc: Alexey Dobriyan
Cc: Andrew
The architecture specific information of the running processes
could be useful to the userland. Add /proc//arch_status
interface support to examine process architecture specific
information externally.
Signed-off-by: Aubrey Li
Cc: Thomas Gleixner
Cc: Peter Zijlstra
Cc: Andi Kleen
Cc: Tim Chen
x27;:
3,251,565,961 core_power.lvl2_turbo_license
1.004031387 seconds time elapsed
Non-zero counter value confirms that the task causes frequency drop.
Signed-off-by: Aubrey Li
Cc: Thomas Gleixner
Cc: Peter Zijlstra
Cc: Andi Kleen
Cc: Tim Chen
Cc: Dave Hansen
Cc: Arjan van de Ven
On Thu, Apr 25, 2019 at 5:55 PM Ingo Molnar wrote:
>
>
> * Aubrey Li wrote:
>
> > On Wed, Apr 24, 2019 at 10:00 PM Julien Desfossez
> > wrote:
> > >
> > > On 24-Apr-2019 09:13:10 PM, Aubrey Li wrote:
> > > > On Wed, Apr 24,
On Tue, Mar 12, 2019 at 3:45 PM Aubrey Li wrote:
>
> On Tue, Mar 12, 2019 at 7:36 AM Subhra Mazumdar
> wrote:
> >
> >
> > On 3/11/19 11:34 AM, Subhra Mazumdar wrote:
> > >
> > > On 3/10/19 9:23 PM, Aubrey Li wrote:
> > >> On
On Thu, Mar 14, 2019 at 8:35 AM Tim Chen wrote:
> >>
> >> One more NULL pointer dereference:
> >>
> >> Mar 12 02:24:46 aubrey-ivb kernel: [ 201.916741] core sched enabled
> >> [ 201.950203] BUG: unable to handle kernel NULL pointer dereference
> >> at 0008
> >> [ 201.950254] ---
x27;:
3,251,565,961 core_power.lvl2_turbo_license
1.004031387 seconds time elapsed
Non-zero counter value confirms that the task causes frequency drop.
Signed-off-by: Aubrey Li
Cc: Peter Zijlstra
Cc: Andi Kleen
Cc: Tim Chen
Cc: Dave Hansen
Cc: Arjan van de Ven
Cc: Linux API
Cc: Al
The architecture specific information of the running processes could
be useful to the userland. Add support to examine process architecture
specific information externally.
Signed-off-by: Aubrey Li
Cc: Peter Zijlstra
Cc: Andi Kleen
Cc: Tim Chen
Cc: Dave Hansen
Cc: Arjan van de Ven
Cc: Linux
Added AVX512_elapsed_ms in /proc//status. Report it
in Documentation/filesystems/proc.txt
Signed-off-by: Aubrey Li
Cc: Peter Zijlstra
Cc: Andi Kleen
Cc: Tim Chen
Cc: Dave Hansen
Cc: Arjan van de Ven
Cc: Linux API
Cc: Alexey Dobriyan
Cc: Andrew Morton
---
Documentation/filesystems
On Wed, Apr 10, 2019 at 12:36 PM Aaron Lu wrote:
>
> On Tue, Apr 09, 2019 at 11:09:45AM -0700, Tim Chen wrote:
> > Now that we have accumulated quite a number of different fixes to your
> > orginal
> > posted patches. Would you like to post a v2 of the core scheduler with the
> > fixes?
>
> One
On Sat, Feb 23, 2019 at 3:27 AM Tim Chen wrote:
>
> On 2/22/19 6:20 AM, Peter Zijlstra wrote:
> > On Fri, Feb 22, 2019 at 01:17:01PM +0100, Paolo Bonzini wrote:
> >> On 18/02/19 21:40, Peter Zijlstra wrote:
> >>> On Mon, Feb 18, 2019 at 09:49:10AM -0800, Linus Torvalds wrote:
> On Mon, Feb 18
On Tue, Feb 26, 2019 at 4:26 PM Aubrey Li wrote:
>
> On Sat, Feb 23, 2019 at 3:27 AM Tim Chen wrote:
> >
> > On 2/22/19 6:20 AM, Peter Zijlstra wrote:
> > > On Fri, Feb 22, 2019 at 01:17:01PM +0100, Paolo Bonzini wrote:
> > >> On 18/02/19 21:40, Peter Zijls
: Srinivas Pandruvada
Cc: Rafael J. Wysocki
Signed-off-by: Aubrey Li
---
kernel/sched/fair.c | 9 +
1 file changed, 9 insertions(+)
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 04a3ce2..5c67804 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -7675,6
hz routines, by initializing idle
cpumask with sched_domain_span(sd), nohz=off case remains the original
behavior.
Cc: Mel Gorman
Cc: Vincent Guittot
Cc: Qais Yousef
Cc: Valentin Schneider
Cc: Jiang Biao
Cc: Tim Chen
Signed-off-by: Aubrey Li
---
include/linux/sched/topology.h | 13 +
kern
Change hierachy to hierarchy and congifured to configured, no functionality
changed.
Signed-off-by: Aubrey Li
---
kernel/cgroup/cpuset.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c
index 57b5b5d..15f4300 100644
--- a
From: Aubrey Li
Add idle cpumask to track idle cpus in sched domain. Every time
a CPU enters idle, the CPU is set in idle cpumask to be a wakeup
target. And if the CPU is not in idle, the CPU is cleared in idle
cpumask during scheduler tick to ratelimit idle cpumask update.
When a task wakes up
From: Aubrey Li
Add idle cpumask to track idle cpus in sched domain. When a CPU
enters idle, if the idle driver indicates to stop tick, this CPU
is set in the idle cpumask to be a wakeup target. And if the CPU
is not in idle, the CPU is cleared in idle cpumask during scheduler
tick to ratelimit
v1->v2:
- idle cpumask is updated in the nohz routines, by initializing idle
cpumask with sched_domain_span(sd), nohz=off case remains the original
behavior.
Cc: Peter Zijlstra
Cc: Mel Gorman
Cc: Vincent Guittot
Cc: Qais Yousef
Cc: Valentin Schneider
Cc: Jiang Biao
Cc: Tim Chen
Signed
ter Zijlstra
Cc: Mel Gorman
Cc: Vincent Guittot
Cc: Qais Yousef
Cc: Valentin Schneider
Cc: Jiang Biao
Cc: Tim Chen
Signed-off-by: Aubrey Li
---
include/linux/sched/topology.h | 13 ++
kernel/sched/core.c| 2 ++
kernel/sched/fair.c| 45 +
d), nohz=off case remains the original
behavior.
Cc: Mel Gorman
Cc: Vincent Guittot
Cc: Qais Yousef
Cc: Valentin Schneider
Cc: Jiang Biao
Cc: Tim Chen
Signed-off-by: Aubrey Li
---
include/linux/sched/topology.h | 13 +
kernel/sched/core.c| 2 ++
kernel/sched/fair.c
From: Aubrey Li
Add idle cpumask to track idle cpus in sched domain. Every time
a CPU enters idle, the CPU is set in idle cpumask to be a wakeup
target. And if the CPU is not in idle, the CPU is cleared in idle
cpumask during scheduler tick to ratelimit idle cpumask update.
When a task wakes up
From: Aubrey Li
Scanning idle cpu from the idle cpumask avoid superfluous scans
of the LLC domain, as the first bit in the idle cpumask is the
target. Considering the selected target could become busy, the
idle check is reserved, but SIS_PROP feature becomes meaningless,
so remove avg_scan_cost
.
Cc: Andi Kleen
Cc: Tim Chen
Cc: Srinivas Pandruvada
Cc: Rafael J. Wysocki
Signed-off-by: Aubrey Li
---
kernel/sched/fair.c | 7 ++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index ae7ceba..b59f371 100644
--- a/kernel/sched
Currently the optional IPC resources prevent telemetry driver from
probing if these resources are not in ACPI table. This patch decouples
telemetry driver from these optional resources, so that telemetry driver
has dependency only on the necessary ACPI resources.
Signed-off-by: Aubrey Li
The architecture specific information of the running processes could
be useful to the userland. Add support to examine process architecture
specific information externally.
Signed-off-by: Aubrey Li
Cc: Peter Zijlstra
Cc: Andi Kleen
Cc: Tim Chen
Cc: Dave Hansen
Cc: Arjan van de Ven
---
fs
5,961 core_power.lvl2_turbo_license
1.004031387 seconds time elapsed
Non-zero counter value confirms that the task causes frequency drop.
Signed-off-by: Aubrey Li
Cc: Peter Zijlstra
Cc: Andi Kleen
Cc: Tim Chen
Cc: Dave Hansen
Cc: Arjan van de Ven
---
arch/x86/include/asm/processor.h | 2 +
Added AVX512_elapsed_ms in /proc//status. Report it
in Documentation/filesystems/proc.txt
Signed-off-by: Aubrey Li
Cc: Peter Zijlstra
Cc: Andi Kleen
Cc: Tim Chen
Cc: Dave Hansen
Cc: Arjan van de Ven
---
Documentation/filesystems/proc.txt | 4 +++-
1 file changed, 3 insertions(+), 1
The architecture specific information of the running processes could
be useful to the userland. Add support to examine process architecture
specific information externally.
Signed-off-by: Aubrey Li
Cc: Peter Zijlstra
Cc: Andi Kleen
Cc: Tim Chen
Cc: Dave Hansen
Cc: Arjan van de Ven
---
fs
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