Hi Ilpo,
On 11/3/2023 3:24 AM, Ilpo Järvinen wrote:
> On Thu, 2 Nov 2023, Reinette Chatre wrote:
>> On 10/24/2023 2:26 AM, Ilpo Järvinen wrote:
>>> L2 CAT test with low number of bits tends to occasionally fail because
>>> of what seems random variation. The margin is quite small to begin with
>>>
Hi Ilpo,
On 11/3/2023 3:39 AM, Ilpo Järvinen wrote:
> On Thu, 2 Nov 2023, Reinette Chatre wrote:
>> On 10/24/2023 2:26 AM, Ilpo Järvinen wrote:
>
>>> Add L2 CAT selftest. As measuring L2 misses is not easily available
>>> with perf, use L3 accesses as a proxy for L2 CAT working or not.
>>
>> I un
Hi Ilpo,
On 11/3/2023 2:54 AM, Ilpo Järvinen wrote:
> On Thu, 2 Nov 2023, Reinette Chatre wrote:
>> On 10/24/2023 2:26 AM, Ilpo Järvinen wrote:
>> ...
>>> diff --git a/tools/testing/selftests/resctrl/resctrl.h
>>> b/tools/testing/selftests/resctrl/resctrl.h
>>> index ec6efd36f60a..e017adf1390d 10
Hi Ilpo,
On 11/3/2023 3:57 AM, Ilpo Järvinen wrote:
> On Thu, 2 Nov 2023, Reinette Chatre wrote:
>> On 10/24/2023 2:26 AM, Ilpo Järvinen wrote:
...
>>> /*
>>> - * Change schemata. Write schemata to specified
>>> - * con_mon grp, mon_grp in resctrl FS.
>>> - * Run 5 times in order to get average
Hi Ilpo,
On 11/3/2023 4:24 AM, Ilpo Järvinen wrote:
> On Thu, 2 Nov 2023, Reinette Chatre wrote:
>> On 10/24/2023 2:26 AM, Ilpo Järvinen wrote:
>>
>>> diff --git a/tools/testing/selftests/resctrl/mba_test.c
>>> b/tools/testing/selftests/resctrl/mba_test.c
>>> index d3bf4368341e..5157a3f74fee 1006
Hi Ilpo,
On 11/3/2023 1:53 AM, Ilpo Järvinen wrote:
>
> Yes, I'm more than happy to rename them. This naming was what you
> suggested earlier. (I used cache_alloc_size() or something like that
> initially and you were against using "alloc" in the name.)
My apologies for giving poor guidance.
Building an arm64 kernel and seftests/bpf with defconfig +
selftests/bpf/config and selftests/bpf/config.aarch64 the fragment
CONFIG_DEBUG_INFO_REDUCED is enabled in arm64's defconfig, it should be
disabled in file sefltests/bpf/config.aarch64 since if its not disabled
CONFIG_DEBUG_INFO_BTF wont be
Fix build warnings:
pagemap_ioctl.c:1154:38: warning: format ‘%s’ expects a matching ‘char *’
argument [-Wformat=]
pagemap_ioctl.c:1162:51: warning: format ‘%ld’ expects argument of type ‘long
int’, but argument 2 has type ‘int’ [-Wformat=]
pagemap_ioctl.c:1192:51: warning: format ‘%ld’ expects a
Some architectures don't support userfaultfd. Skip running the whole
test on them instead of registering the failure.
Reported-by: Ryan Roberts
Closes: https://lore.kernel.org/all/f8463381-2697-49e9-9460-9dc734528...@arm.com
Fixes: 46fd75d4a3c9 ("selftests: mm: add pagemap ioctl tests")
Signed-of
commit 116d57303a05 ("selftests/mm: add a new test for madv and
hugetlb") added a new test case, but, it didn't add the binary name in
tools/testing/selftests/mm/.gitignore.
Add hugetlb_fault_after_madv to tools/testing/selftests/mm/.gitignore.
Fixes: 116d57303a05 ("selftests/mm: add a new test f
The test mm `hugetlb_fault_after_madv` selftest needs one and only one
huge page to run, thus it sets `/proc/sys/vm/nr_hugepages` to 1.
The problem is that further tests require the previous number of
hugepages allocated in order to succeed.
Save the number of huge pages before changing it, and r
On 03/11/2023 13:59, Breno Leitao wrote:
> Hello Ryan,
>
> On Thu, Nov 02, 2023 at 12:29:54PM +, Ryan Roberts wrote:
>> On 02/11/2023 12:24, Ryan Roberts wrote:
>>> On 05/10/2023 17:39, Breno Leitao wrote:
Create a selftest that exercises the race between page faults and
madvise(MADV
Hello Ryan,
On Thu, Nov 02, 2023 at 12:29:54PM +, Ryan Roberts wrote:
> On 02/11/2023 12:24, Ryan Roberts wrote:
> > On 05/10/2023 17:39, Breno Leitao wrote:
> >> Create a selftest that exercises the race between page faults and
> >> madvise(MADV_DONTNEED) in the same huge page. Do it by runni
On Fri, Nov 03, 2023 at 01:59:28PM +0100, David Hildenbrand wrote:
> Okay. the question is if your workflow can be easily adjusted, or if we can
> improve that header handling as a whole.
So on IRC the following was suggested:
make O=defconfig-build headers ; make O=defconfig-build -C
tools/t
On 03.11.23 13:46, Peter Zijlstra wrote:
On Fri, Nov 03, 2023 at 01:22:54PM +0100, David Hildenbrand wrote:
On 03.11.23 13:16, Peter Zijlstra wrote:
On Tue, Jun 06, 2023 at 12:16:37AM -0700, John Hubbard wrote:
As per a discussion with Muhammad Usama Anjum [1], the following is how
one is supp
On 03.11.23 13:59, David Hildenbrand wrote:
On 03.11.23 13:46, Peter Zijlstra wrote:
On Fri, Nov 03, 2023 at 01:22:54PM +0100, David Hildenbrand wrote:
On 03.11.23 13:16, Peter Zijlstra wrote:
On Tue, Jun 06, 2023 at 12:16:37AM -0700, John Hubbard wrote:
As per a discussion with Muhammad Usam
On Fri, Nov 03, 2023 at 01:22:54PM +0100, David Hildenbrand wrote:
> On 03.11.23 13:16, Peter Zijlstra wrote:
> > On Tue, Jun 06, 2023 at 12:16:37AM -0700, John Hubbard wrote:
> > > As per a discussion with Muhammad Usama Anjum [1], the following is how
> > > one is supposed to build selftests:
> >
On 03.11.23 13:16, Peter Zijlstra wrote:
On Tue, Jun 06, 2023 at 12:16:37AM -0700, John Hubbard wrote:
As per a discussion with Muhammad Usama Anjum [1], the following is how
one is supposed to build selftests:
make headers && make -C tools/testing/selftests/mm
Change the selftest build s
On Tue, Jun 06, 2023 at 12:16:37AM -0700, John Hubbard wrote:
> As per a discussion with Muhammad Usama Anjum [1], the following is how
> one is supposed to build selftests:
>
> make headers && make -C tools/testing/selftests/mm
>
> Change the selftest build system's lib.mk to fail out with a
On Thu, 2 Nov 2023, Reinette Chatre wrote:
> On 10/24/2023 2:26 AM, Ilpo Järvinen wrote:
>
> > @@ -229,6 +228,31 @@ int get_cbm_mask(char *cache_type, char *cbm_mask)
> > return 0;
> > }
> >
> > +/*
> > + * get_cbm_mask - Get cbm bit mask
>
> I know you just copied code here but please kee
On Thu, 2 Nov 2023, Reinette Chatre wrote:
> On 10/24/2023 2:26 AM, Ilpo Järvinen wrote:
>
> > diff --git a/tools/testing/selftests/resctrl/mba_test.c
> > b/tools/testing/selftests/resctrl/mba_test.c
> > index d3bf4368341e..5157a3f74fee 100644
> > --- a/tools/testing/selftests/resctrl/mba_test.c
On Thu, 2 Nov 2023, Reinette Chatre wrote:
> On 10/24/2023 2:26 AM, Ilpo Järvinen wrote:
> > CAT test spawns two processes into two different control groups with
> > exclusive schemata. Both the processes alloc a buffer from memory
> > matching their allocated LLC block size and flush the entire bu
On Thu, 2 Nov 2023, Reinette Chatre wrote:
> On 10/24/2023 2:26 AM, Ilpo Järvinen wrote:
> > Add L2 CAT selftest. As measuring L2 misses is not easily available
> > with perf, use L3 accesses as a proxy for L2 CAT working or not.
>
> I understand the exact measurement is not available but I do no
On Thu, 2 Nov 2023, Reinette Chatre wrote:
> On 10/24/2023 2:26 AM, Ilpo Järvinen wrote:
> > L2 CAT test with low number of bits tends to occasionally fail because
> > of what seems random variation. The margin is quite small to begin with
> > for <= 2 bits in CBM. At times, the result can even bec
On Thu, 2 Nov 2023, Reinette Chatre wrote:
> On 10/24/2023 2:26 AM, Ilpo Järvinen wrote:
> ...
> > diff --git a/tools/testing/selftests/resctrl/resctrl.h
> > b/tools/testing/selftests/resctrl/resctrl.h
> > index ec6efd36f60a..e017adf1390d 100644
>
> > @@ -233,25 +183,26 @@ int main(int argc, char
On Thu, 2 Nov 2023, Reinette Chatre wrote:
> Hi Ilpo,
>
> On 10/24/2023 2:26 AM, Ilpo Järvinen wrote:
> > Perf event handling has functions that are the sole caller of another
> > perf event handling related function:
> > - reset_enable_llc_perf() calls perf_event_open_llc_miss()
> > - reset_
Hello:
This patch was applied to netdev/net.git (main)
by David S. Miller :
On Tue, 31 Oct 2023 11:47:32 +0800 you wrote:
> In the PMTU test, when all previous tests are skipped and the new test
> passes, the exit code is set to 0. However, the current check mistakenly
> treats this as an assignm
On Thu, 2 Nov 2023, Reinette Chatre wrote:
> On 10/24/2023 2:26 AM, Ilpo Järvinen wrote:
> > Perf counters are __u64 but the code converts them to unsigned long
> > before printing them out.
> >
> > Remove unnecessary type conversion and the potential loss of meaningful
> > bits due to different s
On Thu, 2 Nov 2023, Reinette Chatre wrote:
> Hi Ilpo,
>
> On 10/24/2023 2:26 AM, Ilpo Järvinen wrote:
> > CAT and CMT tests calculate the span size from the n-bits cache
> > allocation on their own.
> >
> > Add cache_size() helper which calculates size of the cache portion for
> > the given numb
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