PF_MEMALLOC direct reclaimers get throttled on a node when the sum of
all free pages in each zone fall below half the min watermark. During
the summation, we want to exclude zones that don't have reclaimables.
Checking the same pgdat over and over again doesn't make sense.
Fixes: 599d0c954f91 ("mm
On 28.02.2017 23:08, Dmitry Torokhov wrote:
We have switched the driver to use generic device properties API, so there
is no need to check for presence of DT node before trying parse properties.
Signed-off-by: Dmitry Torokhov
Acked-by: Michael Hennerich
---
drivers/input/touchscreen/ad787
NR_PAGES_SCANNED counts number of pages scanned since the last page
free event in the allocator. This was used primarily to measure the
reclaimability of zones and nodes, and determine when reclaim should
give up on them. In that role, it has been replaced in the preceeding
patches by a different m
On 28.02.2017 23:08, Dmitry Torokhov wrote:
The conversion to devm accidentally removed setting up of I2C client data
upon successful probe of the touchscreen. Let's move this setting into the
core, so we do not forger about it again.
Fixes: 381f688eee3d ("Input: ad7879 - use more devm interface
Jia He reports a problem with kswapd spinning at 100% CPU when
requesting more hugepages than memory available in the system:
$ echo 4000 >/proc/sys/vm/nr_hugepages
top - 13:42:59 up 3:37, 1 user, load average: 1.09, 1.03, 1.01
Tasks: 1 total, 1 running, 0 sleeping, 0 stopped, 0 zomb
246e87a93934 ("memcg: fix get_scan_count() for small targets") sought
to avoid high reclaim priorities for memcg by forcing it to scan a
minimum amount of pages when lru_pages >> priority yielded nothing.
This was done at a time when reclaim decisions like dirty throttling
were tied to the priority
1d82de618ddd ("mm, vmscan: make kswapd reclaim in terms of nodes")
allowed laptop_mode=1 to start writing not just when the priority
drops to DEF_PRIORITY - 2 but also when the node is unreclaimable.
That appears to be a spurious change in this patch as I doubt the
series was tested with laptop_mod
On Wednesday 01 March 2017 03:09 AM, Richard Weinberger wrote:
> Vignesh,
>
> Am 27.02.2017 um 13:08 schrieb Vignesh R:
>> Filesystems like UBIFS may pass vmalloc'd buffers to SPI NOR layer which
>> will end up in SPI layer. SPI core does try to handle such buffers (see
>> spi_map_buf()) by doin
On Wednesday 01 March 2017 03:11 AM, Richard Weinberger wrote:
> Vignesh,
>
> Am 27.02.2017 um 13:08 schrieb Vignesh R:
>> Many SPI controller drivers use DMA to read/write from m25p80 compatible
>> flashes. Therefore enable bounce buffers support provided by spi-nor
>> framework to take care of
On Tue, Feb 28, 2017 at 01:57:55PM +0530, Pranay Kr. Srivastava wrote:
> speakup_allocate used GFP_ATOMIC for allocations
> even while during initialization due to it's use
> in notifier call.
>
> Pass GFP_ flags as well to speakup_allocate depending
> on the context it is called in.
>
> Signed-o
On Tue, Feb 28, 2017 at 01:57:53PM +0530, Pranay Kr. Srivastava wrote:
> This patch makes spk_set_key_info return -EINVAL
> in case of failure instead of returning 4 different
> values for the type of error that occurred.
>
> Print the offending values instead as debug message.
>
> Signed-off-by:
On 02/28/2017 09:22 PM, Rob Herring wrote:
> On Tue, Feb 28, 2017 at 9:14 AM, Ulf Hansson wrote:
>> [...]
>>
---> Parent domain-2 (Contains
Perfomance states)
|
|
Commit 21caf2fc1931 ("mm: teach mm by current context info to not do I/O
during memory allocation") added the memalloc_noio_(save|restore) functions
to enable people to modify the MM behavior by disbaling I/O during memory
allocation. This prevents allocation paths recursing back into the filesyste
Tracefs or debugfs were causing hundreds to thousands of null PATH records to
be associated with the init_module and finit_module SYSCALL records on a few
modules when the following rule was in place for startup:
-a always,exit -F arch=x86_64 -S init_module -F key=mod-load
Fill in the file
On Wed, Mar 1, 2017 at 12:15 PM, Sun Paul wrote:
> Hi Xin
>
> I have used 3.10.0-514.6.2.el7.x86_64 on Centos7 and tessted. the
> same issue still occur.
>
> any idea?
>
what I can only see is :
03:32:37.928679 IP 10.165.250.22.3868 > 192.168.2.13.40001: sctp (1) [HB REQ]
03:32:37.928717 IP 192.1
Hi Tyler,
On 2017/2/22 5:21, Tyler Baicar wrote:
> ARM APEI extension proposal added SEA (Synchronous External Abort)
> notification type for ARMv8.
> Add a new GHES error source handling function for SEA. If an error
> source's notification type is SEA, then this function can be registered
> into
On 28.02.2017 23:08, Dmitry Torokhov wrote:
Instead of manipulating capabilities bits of input device directly, let's
use input_set_capability() API.
Also, stop setting ABS_X/Y bits explicitly as input_set_abs_params() does
this for us.
Signed-off-by: Dmitry Torokhov
Acked-by: Michael Henner
Commit 34c2f668d0f6 ("MIPS: microMIPS: Add unaligned access support.")
added handling of microMIPS instructions to manipulate the stack
pointer. Unfortunately the decoding of the addiusp instruction was
incorrect, and performed a left shift by 2 bits to the raw immediate,
rather than decoding the i
Commit 81a76d7119f6 ("MIPS: Avoid using unwind_stack() with usermode")
added a check if the passed regs are from user mode, and perform a raw
backtrace if so.
When WARN() is invoked, __dump_stack calls show_stack()
with NULL task and stack pointers. This leads show_stack to create a
pt_regs struct
> One of the limitations of using async_schedule() though is we cannot
> request_module() synchronously on async calls given that the module
> initialization code will call async_synchronize_full() if the module
> being initialized happened to have used async work on its
> initialization routine,
When the immediate encoded in the instruction is accessed, it is sign
extended due to being a signed value being assigned to a signed integer.
The ISA specifies that this operation is an unsigned operation.
The sign extension leads us to incorrectly decode:
801e9c8e: cbf1sw
Arnd, Greg,
I checked the attributes returned by the soc attribute subsystem, but
it seems that it is lacking something equivalent to timestamp in the
Intel System ID controller. Do you think it is better to add a new
attribute (named timestamp) to soc or create a new sysfs entry like
what I did?
Commit b6c7a324df37 ("MIPS: Fix get_frame_info() handling of microMIPS
function size") goes some way to fixing get_frame_info() to iterate over
microMIPS instuctions, but increments the instruction pointer using a
postincrement of the instruction pointer, which is of union
mips_instruction type. Si
From: Len Brown
with --debug, see:
cpu0: MSR_CC6_DEMOTION_POLICY_CONFIG: 0x (DISable-CC6-Demotion)
cpu0: MSR_MC6_DEMOTION_POLICY_CONFIG: 0x (DISable-MC6-Demotion)
Note that the hardware default is to enable demotion,
and Linux started clearing these registers in 3.17.
Signed-of
On Tue, Feb 28, 2017 at 07:15:47PM +0100, Peter Zijlstra wrote:
> On Wed, Jan 18, 2017 at 10:17:32PM +0900, Byungchul Park wrote:
> > + /*
> > +* Each work of workqueue might run in a different context,
> > +* thanks to concurrency support of workqueue. So we have to
> > +* distinguis
From: Len Brown
Turbostat dumps MSR_TURBO_RATIO_LIMIT on Core Architecture.
But Atom Architecture uses MSR_ATOM_CORE_RATIOS and
MSR_ATOM_CORE_TURBO_RATIOS.
Signed-off-by: Len Brown
---
tools/power/x86/turbostat/turbostat.c | 103 +++---
1 file changed, 82 insertions
On Tue, Feb 28, 2017 at 2:31 PM, Brendan Gregg
wrote:
> G'Day Ravi,
>
[...]
> Now retrying perf:
>
> # ./perf record -e sdt_node:http__server__request -a
> ^C[ perf record: Woken up 1 times to write data ]
> [ perf record: Captured and wrote 0.446 MB perf.data (3 samples) ]
> # ./perf script
>
From: Len Brown
The IRQ column has been working for periodic mode,
but not in one-shot command mode, it shows only 0.
until now.
Signed-off-by: Len Brown
---
tools/power/x86/turbostat/turbostat.c | 12
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/tools/power/x86/
On 24/02/17 17:14, Vitaly Kuznetsov wrote:
> Get read of #ifdefs in suspend.c by splitting the code into
> suspend_pv.c and suspend_hvm.c.
>
> Signed-off-by: Vitaly Kuznetsov
Reviewed-by: Juergen Gross
Juergen
From: Len Brown
Decode MISC_ENABLE.NO_TURBO,
also use the #defines in msr-index.h for decoding this register
cpu0: MSR_IA32_MISC_ENABLE: 0x00850089 (TCC EIST MWAIT TURBO)
Although it is not architectural, decode also
MSR_IA32_MISC_ENABLE.prefetch-disable (bit-9).
documented to be present on: Co
On 28-02-17, 08:10, Rob Herring wrote:
> On Tue, Feb 28, 2017 at 12:57 AM, Viresh Kumar
> wrote:
> > That's what I did in V2, but then I turned it down considering the
> > parent/child
> > relationships we may have.
> >
> > There are multiple cases we can have:
> >
> > A.) DeviceX ---> Parent-
On 24/02/17 17:14, Vitaly Kuznetsov wrote:
> xen_pmu_init/finish() functions are used in suspend.c and
> enlighten.c, add stubs for now.
>
> Signed-off-by: Vitaly Kuznetsov
Reviewed-by: Juergen Gross
Juergen
From: Andi Kleen
Add support for parsing the MetricExpr header in the JSON event lists and
storing them in the alias structure.
Used in the next patch.
v2: Change DividedBy to MetricExpr
v3: Really catch all uses of DividedBy
Signed-off-by: Andi Kleen
---
tools/perf/pmu-events/jevents.c|
From: Andi Kleen
Add support for a new JSON event attribute to name MetricExpr for better output
in perf stat.
If the event has no MetricName it uses the normal event name instead to describe
the metric.
So far no names are added.
Signed-off-by: Andi Kleen
---
tools/perf/pmu-events/jevents.c
This patch kit further improves support for Intel uncore events in
the Linux perf user tool. The basic support has been already
merged earlier, but this makes it nicer to use.
- Collapse counts from duplicated boxes to make the output
easier to read.
- Support specifying events for multiple duplic
From: Andi Kleen
To be used in next patch to support automatic summing of alias
events.
v2: Move check for bad results to next patch
Signed-off-by: Andi Kleen
---
tools/perf/builtin-stat.c | 104 --
1 file changed, 81 insertions(+), 23 deletions(-)
From: Andi Kleen
Special case uncore_ prefix in PMU match, to allow for shorter event
uncore specifications.
Before
perf stat -a -e uncore_cbox/event=0x35,umask=0x1,filter_opc=0x19C/ sleep 1
After
perf stat -a -e cbox/event=0x35,umask=0x1,filter_opc=0x19C/ sleep 1
Signed-off-by: Andi Kleen
From: Andi Kleen
When the user specifies a pmu directly, expand it automatically
with a prefix match for all available PMUs, similar as we do for
the normal aliases now.
This allows to specify attributes for duplicated boxes quickly.
For example uncore_cbox_{0,6}/.../ can be now specified as unc
From: Andi Kleen
Factor out the PMU name matching in the event parser into a separate function,
to use the same code for other grammar rules later.
Signed-off-by: Andi Kleen
---
tools/perf/util/parse-events.c | 46 ++
tools/perf/util/parse-events.h | 5
From: Andi Kleen
Output the metric expr in perf list when -v is specified, so that the user
can check the formula.
Before:
% perf list -v
...
unc_m_power_channel_ppd
[Cycles where DRAM ranks are in power down (CKE) mode. Derived from
unc_m_power_channel_ppd. Unit:
uncore_imc
On Tue, Feb 28, 2017 at 01:49:06PM +0100, Peter Zijlstra wrote:
> On Tue, Feb 28, 2017 at 01:45:07PM +0100, Peter Zijlstra wrote:
> > On Wed, Jan 18, 2017 at 10:17:32PM +0900, Byungchul Park wrote:
> > > + /*
> > > + * struct held_lock does not have an indicator whether in nmi.
> > > + */
> > > +
On Wed, Mar 01, 2017 at 02:17:07PM +0900, Byungchul Park wrote:
> On Tue, Feb 28, 2017 at 04:49:00PM +0100, Peter Zijlstra wrote:
> > On Wed, Jan 18, 2017 at 10:17:32PM +0900, Byungchul Park wrote:
> >
> > > +struct cross_lock {
> > > + /*
> > > + * When more than one acquisition of crosslocks ar
Here are two minor cleanups for acpi_fujitsu_bl_notify() that I came up
with while preparing the sparse keymap migration.
Changes from v1:
- Rebase on top of reworked Alan Jenkins' cleanup patch series.
- Join integer variable declarations into a single line in patch 2/2.
drivers/platform/
Jason Baron writes:
...
> I also checked all the other .ko files and they were properly aligned.
> So I think this should hopefully work, and I like that its not a
> per-arch fix.
>
> Sachin, sorry to bother you again, but I'm hoping you can try David's
> latest patch to scripts/module-common.l
acpi_fujitsu_bl_notify() is pretty deeply nested, which hurts
readability. Strip off one level of indentation by returning early when
the event code supplied as argument is not ACPI_FUJITSU_NOTIFY_CODE1.
Signed-off-by: Michał Kępień
---
Changes introduced by this patch are best viewed when white
Returning early when there is no brightness change allows removal of a
duplicate code block, makes the purpose of the following code clearer
and allows the condition surrounding key event generation to be removed.
Local integer variables can also be declared in a single line.
Signed-off-by: Michał
Enable ocotp for i.mx7D/S.
Correct the clock entry and compatible string.
Signed-off-by: Peng Fan
Cc: Shawn Guo
Cc: Srinivas Kandagatla
Cc: Sascha Hauer
Cc: Fabio Estevam
Cc: Rob Herring
Cc: Mark Rutland
---
arch/arm/boot/dts/imx7s.dtsi | 5 ++---
1 file changed, 2 insertions(+), 3 deletio
Add i.MX7D support.
There is 16 banks, each bank 4 words.
Signed-off-by: Peng Fan
Cc: Srinivas Kandagatla
Cc: Maxime Ripard
Cc: Shawn Guo
---
drivers/nvmem/imx-ocotp.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/nvmem/imx-ocotp.c b/drivers/nvmem/imx-ocotp.c
index b8ca1e6..4155
From: Len Brown
Add the "cpufreq.off=1" cmdline option.
At boot-time, this allows a user to request CONFIG_CPU_FREQ=n
behavior from a kernel built with CONFIG_CPU_FREQ=y.
This is analogous to the existing "cpuidle.off=1" option
and CONFIG_CPU_IDLE=y
This capability is valuable when we need to
From: Len Brown
When --add was used more than once, overflowed buffers
caused some counters to be stored on top of others,
corrupting the results. Simplify the code by simply
reserving space for up to 16 added counters per each
cpu, core, package.
Per-cpu added counters were being printed only
Add compatible string for i.MX7D/S
Signed-off-by: Peng Fan
Cc: Shawn Guo
Cc: Srinivas Kandagatla
Cc: Maxime Ripard
Cc: Rob Herring
Cc: Mark Rutland
---
Documentation/devicetree/bindings/nvmem/imx-ocotp.txt | 1 +
1 file changed, 1 insertion(+)
diff --git a/Documentation/devicetree/bindings
On Tue, 28 Feb 2017 16:26:19 +0530
Ravi Bangoria wrote:
> Thanks Masami for the review.
> Please find my replies to your comments.
>
> On Tuesday 28 February 2017 11:15 AM, Masami Hiramatsu wrote:
> > On Fri, 24 Feb 2017 13:13:25 +0530
> > Ravi Bangoria wrote:
> >
> >> After invoking 'perf reco
On 02/28/2017 08:48 PM, Jon Hunter wrote:
> Hi all,
>
> On 20/09/16 11:28, Jon Hunter wrote:
>> The Tegra124/210 XUSB subsystem (that consists of both host and device
>> controllers) is partitioned across 3 PM domains which are:
>> - XUSBA: Superspeed logic (for USB 3.0)
>> - XUSBB: Device contro
From: Len Brown
The two users, intel_idle driver and turbostat utility
are using the new name, MSR_PKG_CST_CONFIG_CONTROL
Cc: x...@kernel.org
Signed-off-by: Len Brown
---
arch/x86/include/asm/msr-index.h | 1 -
1 file changed, 1 deletion(-)
diff --git a/arch/x86/include/asm/msr-index.h b/arch
On Tue, Feb 28, 2017 at 05:55:11PM -0800, Linus Torvalds wrote:
> Guys,
> the recent 'objtool' pull request broke things.
>
> I haven't bisected it, but I'm pretty sure that this part is pure garbage:
>
> On Mon, Feb 27, 2017 at 11:53 PM, Ingo Molnar wrote:
> >
> > diff --git a/arch/x86/kernel/
On 24/02/17 17:14, Vitaly Kuznetsov wrote:
> These three files (mmu.c, p2m.c, setup.c) are mostly required to support
> PV guests, in fact p2m.c and setup.c have no code for PVHVM at all. mmu.c
> has some, split the file into mmu.c, mmu_pv.c and mmu_hvm.c.
>
> Some additional changes are required:
On 24/02/17 17:14, Vitaly Kuznetsov wrote:
> More or less mechanically split smp.c into 3 files. XEN_PV_SMP and
> XEN_PVHVM_SMP config options added to support the change.
>
> Signed-off-by: Vitaly Kuznetsov
Same as in patch 1: one patch with no functional changes and one with
the functional stu
On Mon, Feb 27, 2017 at 11:57 PM, Ingo Molnar wrote:
>
> Note that the uninlining allowed us to enable the underflow/overflow warnings
> unconditionally and remove the debug Kconfig switch: this might trigger new
> warnings in buggy code and turn crashes/use-after-free bugs into less harmful
> mem
On 24/02/17 17:14, Vitaly Kuznetsov wrote:
> Introduce CONFIG_XEN_PV config option and split enlighten.c into
> 4 files. Temporary add #ifdef CONFIG_XEN_PV to smp.c and mmu.c to
> not break the build and not make the patch even bigger.
>
> xen_cpu_up_prepare*/xen_cpu_die hooks require separation t
Hi Linus,
Could you please consider the below pull request for v4.11?
Thanks,
The following changes since commit 53cd1ad1a68fd10f677445e04ed63aa9ce39b36b:
Merge branch 'i2c/for-current' of
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux (2017-01-28 15:09:23
-0800)
are available in
On 28-02-17, 09:52, Rob Herring wrote:
> On Tue, Feb 28, 2017 at 9:14 AM, Ulf Hansson wrote:
> > This comes from the early design of the generic PM domain, thus I
> > assume we have some HW with such complex PM topology. However, I don't
> > know if it is actually being used.
> >
> > Moreover, the
2017-02-28 20:15 GMT+08:00 Dmitry Vyukov :
> Hello,
>
> The following program triggers WARNING in nested_vmx_vmexit:
> https://gist.githubusercontent.com/dvyukov/16b946d7dc703bb07b9b933f12fb8a6e/raw/dac60506feb8dd9dd22828c486e46ee8a5e30f13/gistfile1.txt
>
>
> [ cut here ]
>
On 02/28/2017 02:04 AM, Mark Rutland wrote:
> On Tue, Feb 28, 2017 at 08:42:51AM +, Ard Biesheuvel wrote:
>> (+ Mark)
>
> (+ Laura)
>
>> On 28 February 2017 at 07:05, Miles Chen wrote:
>>> Mask kernel pointers of /sys/kernel/debug/kernel_page_tables entry like
>>> /proc/vmallocinfo does.
>>>
From: Len Brown
These MSRs are currently used by the intel_pstate driver,
using a local definition.
Cc: x...@kernel.org
Signed-off-by: Len Brown
---
arch/x86/include/asm/msr-index.h | 6 ++
1 file changed, 6 insertions(+)
diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/as
From: Len Brown
previously known as MSR_NHM_SNB_PKG_CST_CFG_CTL
Signed-off-by: Len Brown
---
drivers/idle/intel_idle.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index 7d8ea3d5fda6..930537da76d4 100644
--- a/
From: Len Brown
Without --debug, a debug line was printed on Baytrail:
SLM BCLK: 83.3 Mhz
Signed-off-by: Len Brown
---
tools/power/x86/turbostat/turbostat.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/tools/power/x86/turbostat/turbostat.c
b/tools/power/x86/turbostat
From: Len Brown
On multi-package systems, the "Package" column was being displayed
only if --debug was used. Show it always.
Signed-off-by: Len Brown
---
tools/power/x86/turbostat/turbostat.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/power/x86/turbostat/turbost
From: Len Brown
Add a digit of precision to the --debug output for frequency range.
This is useful when BCLK is not an integer.
old:
6 * 83 = 500 MHz max efficiency frequency
26 * 83 = 2166 MHz base frequency
new:
6 * 83.3 = 499.8 MHz max efficiency frequency
26 * 83.3 = 2165.8 MHz base frequen
From: Len Brown
and so --debug fails with:
turbostat: msr 1 offset 0x1aa read failed: Input/output error
It seems that baytrail, and airmont do not have this MSR.
It is included in subsequent Goldmont Atom.
Signed-off-by: Len Brown
---
tools/power/x86/turbostat/turbostat.c | 12 ++--
On Tue, Feb 28, 2017 at 7:34 PM, David Windsor wrote:
> This adds kernel-doc comments for the new refcount_t API.
>
> Signed-off-by: David Windsor
Yay docs! :)
Acked-by: Kees Cook
-Kees
--
Kees Cook
Pixel Security
On Tue, Feb 28, 2017 at 02:40:18PM +0100, Peter Zijlstra wrote:
> > +static int commit_xhlocks(struct cross_lock *xlock)
> > +{
> > + struct task_struct *curr = current;
> > + struct hist_lock *xhlock_c = xhlock_curr(curr);
> > + struct hist_lock *xhlock = xhlock_c;
> > +
> > + do {
> > +
From: Len Brown
Cc: x...@kernel.org
Signed-off-by: Len Brown
---
arch/x86/include/asm/intel-family.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/include/asm/intel-family.h
b/arch/x86/include/asm/intel-family.h
index 8167fdb67ae8..9814db42b790 100644
--- a/arch/x86/include/asm/
From: Guan Ben
extend the pwm-beeper driver to support customized frequency
for SND_BELL from device tree.
Signed-off-by: Guan Ben
Signed-off-by: Mark Jonas
[h...@denx.de: adapted to 4.10-rc7]
Signed-off-by: Heiko Schocher
Acked-by: Rob Herring
---
Changes in v3:
- add comment from David L
From: Len Brown
Add the "--show" and "--hide" cmdline parameters.
By default, turbostat shows all columns.
turbostat --hide counter_list
will continue showing all columns, except for those listed.
turbostat --show counter_list
will show _only_ the listed columns
These features work for built-
From: Len Brown
The Baytrail SOC, with its Silvermont core, has some unique properties:
1. a hardware CC1 residency counter
2. a module-c6 residency counter
3. a package-c6 counter at traditional package-c7 counter address.
The SOC does not support c3, pc3, c7 or pc7 counters.
Signed-off-by: L
From: Len Brown
define MSR_PKG_CST_CONFIG_CONTROL (0xE2),
which is the string used by Intel Documentation.
We use this MSR in intel_idle and turbostat by a previous name,
to be updated in the next patch.
Cc: x...@kernel.org
Signed-off-by: Len Brown
---
arch/x86/include/asm/msr-index.h | 1 +
From: Len Brown
It is handy to know the list of column header names,
so that they can be used with --add and --skip
The new --list option shows them:
sudo ./turbostat --list --hide sysfs
,Core,CPU,Avg_MHz,Busy%,Bzy_MHz,TSC_MHz,IRQ,SMI,CPU%c1,CPU%c3,CPU%c6,CPU%c7,CoreTmp,PkgTmp,GFX%rc6,GFXMHz,Pk
From: Len Brown
AMT value 0 is unlimited, not PC0
Signed-off-by: Len Brown
---
tools/power/x86/turbostat/turbostat.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/power/x86/turbostat/turbostat.c
b/tools/power/x86/turbostat/turbostat.c
index 9b35c9bb0489..aedfaddbad
Hi Rafael,
Please pull these turbostat-related patches.
This patch series updates turbostat in the Linux kernel tree to
to the latest out-of-tree version -- 17.02.24.
There are several significant changes since the version that
shipped in the Linux-4.10 tree.
Default output is now verbose, --deb
From: Len Brown
cpu1: cpufreq driver: acpi-cpufreq
cpu1: cpufreq governor: ondemand
cpufreq boost: 1
or
cpu0: cpufreq driver: intel_pstate
cpu0: cpufreq governor: powersave
cpufreq intel_pstate no_turbo: 0
Signed-off-by: Len Brown
---
tools/power/x86/turbostat/turbostat.c | 50 ++
From: Len Brown
Originally, these MSRs were locally defined in this driver.
Now the definitions are in msr-index.h -- use them.
Signed-off-by: Len Brown
---
drivers/cpufreq/intel_pstate.c | 15 +--
1 file changed, 5 insertions(+), 10 deletions(-)
diff --git a/drivers/cpufreq/intel
From: Len Brown
This non-architectural MSR has disable bits
for various prefetchers on modern processors.
While these bits are generally touched only by the BIOS,
say, via BIOS SETUP, it is useful to dump them
when examining options that can alter performance.
Cc: x...@kernel.org
Signed-off-by:
From: Len Brown
Previously, the --add option could specify only an MSR.
Here is is extended so an arbitrary /sys attribute,
as specified by an absolute file path name.
sudo ./turbostat --add /sys/devices/system/cpu/cpu0/cpuidle/state5/usage
Signed-off-by: Len Brown
---
tools/power/x86/turbos
From: Len Brown
Skip these four counters on SKX, as they are always zero:
cc3, pc3
cc7, pc7
Signed-off-by: Len Brown
---
tools/power/x86/turbostat/turbostat.c | 18 ++
1 file changed, 18 insertions(+)
diff --git a/tools/power/x86/turbostat/turbostat.c
b/tools/power/x86/turbos
From: Len Brown
With the --cpu parameter, turbostat prints only lines
for the specified set of CPUs:
sudo ./turbostat --quiet --show Core,CPU --cpu 0,1,3..5,6-7
CoreCPU
- -
0 0
0 4
1 1
1 5
2 6
From: Len Brown
When turbostat shows % of time in a CPU idle power state,
it has always been showing information from underlying
hardware residency counters.
While this reflects what the hardware is doing, and is thus
useful for understanding the hardware,
it doesn't directly tell us what Linux
From: Len Brown
Fix a bug with --add, where the title of the column
is un-initialized if not specified by the user.
The initial implementation of --show and --hide
neglected to handle the pc8/pc9/pc10 counters.
Fix a bug where "--show Core" only worked with --debug
Reported-by: Wendy Wang
Sig
From: Len Brown
When the "u32" keyword is used with --add, it means that
the output should be truncated to 32-bits. This was not
happening and all 64-bits were printed.
Also, when no column name was used for an added MSR,
The default column name was in deximal, eg. MSR16.
Users report that they
From: Len Brown
The CPU ticks at a rate in the "bus clock" domain.
eg. 100 MHz * bus_ratio.
On newer processors, the TSC has been moved out of this BCLK
domain and into a separate crystal-clock domain.
While the TSC ticks "close to" the base frequency, those that look
closely at the numbers wil
From: Len Brown
Some time ago, turbostat overflowed 80 columns.
So on the assumption that a "casual" user would always
want topology and frequency columns, we hid the rest
of the columns and the system configuration decoding
behind the --debug option.
Not everybody liked that change -- includin
From: Len Brown
When turbostat is run in one-shot command mode,
the parent takes the 'before' counter snapshot,
fork/exec/wait for the child to exit,
takes the 'after' counter snapshot,
and prints the results.
however, if the child fails to exec the command,
it immediately returns, without indic
From: Len Brown
The turbostat before this last set of changes is obsolete.
This new version can do a lot more, but it also has
some different defaults, that might catch some off-guard.
So it seems a good time to give a new version number.
Signed-off-by: Len Brown
---
tools/power/x86/turbostat/
From: Len Brown
The CC1 column in tubostat can be computed by subtracting
the core c-state residency countes from the total Cx residency.
CC1 = (Idle_time_as_measured by MPERF) - (all core C-states with
residency counters)
However, as the underlying counter reads are not atomic,
error can be no
From: Len Brown
Skip these two counters on BDX, as they are always zero:
cc7, pc7
Signed-off-by: Len Brown
---
tools/power/x86/turbostat/turbostat.c | 17 +
1 file changed, 17 insertions(+)
diff --git a/tools/power/x86/turbostat/turbostat.c
b/tools/power/x86/turbostat/turbost
From: Len Brown
Gemini Lake is similar to Apollo Lake (Broxton/Goldmont)
Signed-off-by: Len Brown
---
tools/power/x86/turbostat/turbostat.c | 5 +
1 file changed, 5 insertions(+)
diff --git a/tools/power/x86/turbostat/turbostat.c
b/tools/power/x86/turbostat/turbostat.c
index 4b04ba86e44f
From: Len Brown
Originally, the only way to hide the sysfs C-state statistics columns
was with "--hide sysfs". This was because we process "--hide" before
we probe for those columns.
hack --hide to remember deferred hide requests, and apply
them when sysfs is probed.
"--hide sysfs" is still av
From: Len Brown
show the CPUID feature for turbo to clarify the case
when it may not be shown in MISC_ENABLE
CPUID(6): APERF, TURBO, DTS, PTM, No-HWP, No-HWPnotify, No-HWPwindow,
No-HWPepp, No-HWPpkg, EPB
cpu4: MSR_IA32_MISC_ENABLE: 0x00850089 (TCC EIST MWAIT TURBO)
Signed-off-by: Len Brown
-
From: Len Brown
Some users want turbostat to tell them everything, by default.
Some users want turbostat to be quiet, by default.
I find that I'm in the 1st camp, and so I've never liked
needing to type the --debug parameter to decode the system
configuration.
So here we change the default and
From: Len Brown
Make it possible to take the entire un-edited output
from `turbostat --list` and feed it to "turbostat --show"
or "turbostat --hide".
To do this, the leading comma was removed
(no mater what columns are active)
and also they dynamic C-state "C1, C2, C3" etc are replaced
by the st
From: Len Brown
--Package is now "--cpu package",
which will display just the 1st CPU in each package
--processor is not "--cpu core"
which will display just the 1st CPU in each core
Signed-off-by: Len Brown
---
tools/power/x86/turbostat/turbostat.8 | 6 +-
tools/power/x86/turbostat/turb
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