From: Pratik Sampat <psampat@linux.ibm.com>
To: Roman Gushchin <guro@fb.com>
Cc: Dennis Zhou <dennis@kernel.org>, Tejun Heo <tj@kernel.org>,
Christoph Lameter <cl@linux.com>,
Andrew Morton <akpm@linux-foundation.org>,
Vlastimil Babka <vbabka@suse.cz>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
pratik.r.sampat@gmail.com
Subject: Re: [PATCH v3 0/6] percpu: partial chunk depopulation
Date: Sat, 17 Apr 2021 00:11:37 +0530 [thread overview]
Message-ID: <09a8d1eb-280d-9ee9-3d68-d065db47a516@linux.ibm.com> (raw)
In-Reply-To: <YHnYqMdyYtIdab6n@carbon.dhcp.thefacebook.com>
On 17/04/21 12:04 am, Roman Gushchin wrote:
> On Fri, Apr 16, 2021 at 11:57:03PM +0530, Pratik Sampat wrote:
>>
>> On 16/04/21 10:43 pm, Roman Gushchin wrote:
>>> On Fri, Apr 16, 2021 at 08:58:33PM +0530, Pratik Sampat wrote:
>>>> Hello Dennis,
>>>>
>>>> I apologize for the clutter of logs before, I'm pasting the logs of before and
>>>> after the percpu test in the case of the patchset being applied on 5.12-rc6 and
>>>> the vanilla kernel 5.12-rc6.
>>>>
>>>> On 16/04/21 7:48 pm, Dennis Zhou wrote:
>>>>> Hello,
>>>>>
>>>>> On Fri, Apr 16, 2021 at 06:26:15PM +0530, Pratik Sampat wrote:
>>>>>> Hello Roman,
>>>>>>
>>>>>> I've tried the v3 patch series on a POWER9 and an x86 KVM setup.
>>>>>>
>>>>>> My results of the percpu_test are as follows:
>>>>>> Intel KVM 4CPU:4G
>>>>>> Vanilla 5.12-rc6
>>>>>> # ./percpu_test.sh
>>>>>> Percpu: 1952 kB
>>>>>> Percpu: 219648 kB
>>>>>> Percpu: 219648 kB
>>>>>>
>>>>>> 5.12-rc6 + with patchset applied
>>>>>> # ./percpu_test.sh
>>>>>> Percpu: 2080 kB
>>>>>> Percpu: 219712 kB
>>>>>> Percpu: 72672 kB
>>>>>>
>>>>>> I'm able to see improvement comparable to that of what you're see too.
>>>>>>
>>>>>> However, on POWERPC I'm unable to reproduce these improvements with the patchset in the same configuration
>>>>>>
>>>>>> POWER9 KVM 4CPU:4G
>>>>>> Vanilla 5.12-rc6
>>>>>> # ./percpu_test.sh
>>>>>> Percpu: 5888 kB
>>>>>> Percpu: 118272 kB
>>>>>> Percpu: 118272 kB
>>>>>>
>>>>>> 5.12-rc6 + with patchset applied
>>>>>> # ./percpu_test.sh
>>>>>> Percpu: 6144 kB
>>>>>> Percpu: 119040 kB
>>>>>> Percpu: 119040 kB
>>>>>>
>>>>>> I'm wondering if there's any architectural specific code that needs plumbing
>>>>>> here?
>>>>>>
>>>>> There shouldn't be. Can you send me the percpu_stats debug output before
>>>>> and after?
>>>> I'll paste the whole debug stats before and after here.
>>>> 5.12-rc6 + patchset
>>>> -----BEFORE-----
>>>> Percpu Memory Statistics
>>>> Allocation Info:
>>> Hm, this looks highly suspicious. Here is your stats in a more compact form:
>>>
>>> Vanilla
>>>
>>> nr_alloc : 9038 nr_alloc : 97046
>>> nr_dealloc : 6992 nr_dealloc : 94237
>>> nr_cur_alloc : 2046 nr_cur_alloc : 2809
>>> nr_max_alloc : 2178 nr_max_alloc : 90054
>>> nr_chunks : 3 nr_chunks : 11
>>> nr_max_chunks : 3 nr_max_chunks : 47
>>> min_alloc_size : 4 min_alloc_size : 4
>>> max_alloc_size : 1072 max_alloc_size : 1072
>>> empty_pop_pages : 5 empty_pop_pages : 29
>>>
>>>
>>> Patched
>>>
>>> nr_alloc : 9040 nr_alloc : 97048
>>> nr_dealloc : 6994 nr_dealloc : 95002
>>> nr_cur_alloc : 2046 nr_cur_alloc : 2046
>>> nr_max_alloc : 2208 nr_max_alloc : 90054
>>> nr_chunks : 3 nr_chunks : 48
>>> nr_max_chunks : 3 nr_max_chunks : 48
>>> min_alloc_size : 4 min_alloc_size : 4
>>> max_alloc_size : 1072 max_alloc_size : 1072
>>> empty_pop_pages : 12 empty_pop_pages : 61
>>>
>>>
>>> So it looks like the number of chunks got bigger, as well as the number of
>>> empty_pop_pages? This contradicts to what you wrote, so can you, please, make
>>> sure that the data is correct and we're not messing two cases?
>>>
>>> So it looks like for some reason sidelined (depopulated) chunks are not getting
>>> freed completely. But I struggle to explain why the initial empty_pop_pages is
>>> bigger with the same amount of chunks.
>>>
>>> So, can you, please, apply the following patch and provide an updated statistics?
>> Unfortunately, I'm not completely well versed in this area, but yes the empty
>> pop pages number doesn't make sense to me either.
>>
>> I re-ran the numbers trying to make sure my experiment setup is sane but
>> results remain the same.
>>
>> Vanilla
>> nr_alloc : 9040 nr_alloc : 97048
>> nr_dealloc : 6994 nr_dealloc : 94404
>> nr_cur_alloc : 2046 nr_cur_alloc : 2644
>> nr_max_alloc : 2169 nr_max_alloc : 90054
>> nr_chunks : 3 nr_chunks : 10
>> nr_max_chunks : 3 nr_max_chunks : 47
>> min_alloc_size : 4 min_alloc_size : 4
>> max_alloc_size : 1072 max_alloc_size : 1072
>> empty_pop_pages : 4 empty_pop_pages : 32
>>
>> With the patchset + debug patch the results are as follows:
>> Patched
>>
>> nr_alloc : 9040 nr_alloc : 97048
>> nr_dealloc : 6994 nr_dealloc : 94349
>> nr_cur_alloc : 2046 nr_cur_alloc : 2699
>> nr_max_alloc : 2194 nr_max_alloc : 90054
>> nr_chunks : 3 nr_chunks : 48
>> nr_max_chunks : 3 nr_max_chunks : 48
>> min_alloc_size : 4 min_alloc_size : 4
>> max_alloc_size : 1072 max_alloc_size : 1072
>> empty_pop_pages : 12 empty_pop_pages : 54
>>
>> With the extra tracing I can see 39 entries of "Chunk (sidelined)"
>> after the test was run. I don't see any entries for "Chunk (to depopulate)"
>>
>> I've snipped the results of slidelined chunks because they went on for ~600
>> lines, if you need the full logs let me know.
> Yes, please! That's the most interesting part!
Got it. Pasting the full logs of after the percpu experiment was completed
Percpu Memory Statistics
Allocation Info:
----------------------------------------
unit_size : 655360
static_size : 608920
reserved_size : 0
dyn_size : 46440
atom_size : 65536
alloc_size : 655360
Global Stats:
----------------------------------------
nr_alloc : 97048
nr_dealloc : 94349
nr_cur_alloc : 2699
nr_max_alloc : 90054
nr_chunks : 48
nr_max_chunks : 48
min_alloc_size : 4
max_alloc_size : 1072
empty_pop_pages : 54
Per Chunk Stats:
----------------------------------------
Chunk: <- First Chunk
nr_alloc : 1081
max_alloc_size : 1072
empty_pop_pages : 0
first_bit : 16117
free_bytes : 4
contig_bytes : 4
sum_frag : 4
max_frag : 4
cur_min_alloc : 4
cur_med_alloc : 8
cur_max_alloc : 1072
memcg_aware : 0
Chunk:
nr_alloc : 826
max_alloc_size : 1072
empty_pop_pages : 6
first_bit : 819
free_bytes : 640660
contig_bytes : 249896
sum_frag : 464700
max_frag : 306216
cur_min_alloc : 4
cur_med_alloc : 8
cur_max_alloc : 1072
memcg_aware : 0
Chunk:
nr_alloc : 0
max_alloc_size : 0
empty_pop_pages : 1
first_bit : 0
free_bytes : 655360
contig_bytes : 655360
sum_frag : 0
max_frag : 0
cur_min_alloc : 0
cur_med_alloc : 0
cur_max_alloc : 0
memcg_aware : 0
Chunk:
nr_alloc : 90
max_alloc_size : 1072
empty_pop_pages : 0
first_bit : 536
free_bytes : 595752
contig_bytes : 26164
sum_frag : 575132
max_frag : 26164
cur_min_alloc : 156
cur_med_alloc : 1072
cur_max_alloc : 1072
memcg_aware : 1
Chunk:
nr_alloc : 90
max_alloc_size : 1072
empty_pop_pages : 0
first_bit : 0
free_bytes : 597428
contig_bytes : 26164
sum_frag : 596848
max_frag : 26164
cur_min_alloc : 156
cur_med_alloc : 312
cur_max_alloc : 1072
memcg_aware : 1
Chunk:
nr_alloc : 92
max_alloc_size : 1072
empty_pop_pages : 0
first_bit : 0
free_bytes : 595284
contig_bytes : 26164
sum_frag : 590360
max_frag : 26164
cur_min_alloc : 156
cur_med_alloc : 312
cur_max_alloc : 1072
memcg_aware : 1
Chunk:
nr_alloc : 92
max_alloc_size : 1072
empty_pop_pages : 0
first_bit : 0
free_bytes : 595284
contig_bytes : 26164
sum_frag : 583768
max_frag : 26164
cur_min_alloc : 156
cur_med_alloc : 312
cur_max_alloc : 1072
memcg_aware : 1
Chunk:
nr_alloc : 360
max_alloc_size : 1072
empty_pop_pages : 7
first_bit : 26595
free_bytes : 506640
contig_bytes : 506540
sum_frag : 100
max_frag : 36
cur_min_alloc : 4
cur_med_alloc : 156
cur_max_alloc : 1072
memcg_aware : 1
Chunk:
nr_alloc : 12
max_alloc_size : 1072
empty_pop_pages : 3
first_bit : 0
free_bytes : 647524
contig_bytes : 563492
sum_frag : 57872
max_frag : 26164
cur_min_alloc : 156
cur_med_alloc : 312
cur_max_alloc : 1072
memcg_aware : 1
Chunk (sidelined):
nr_alloc : 52
max_alloc_size : 1072
empty_pop_pages : 0
first_bit : 0
free_bytes : 621404
contig_bytes : 203104
sum_frag : 603400
max_frag : 260656
cur_min_alloc : 156
cur_med_alloc : 312
cur_max_alloc : 1072
memcg_aware : 1
Chunk (sidelined):
nr_alloc : 4
max_alloc_size : 1072
empty_pop_pages : 0
first_bit : 0
free_bytes : 652748
contig_bytes : 570600
sum_frag : 570600
max_frag : 570600
cur_min_alloc : 156
cur_med_alloc : 312
cur_max_alloc : 1072
memcg_aware : 1
Chunk (sidelined):
nr_alloc : 0
max_alloc_size : 1072
empty_pop_pages : 1
first_bit : 0
free_bytes : 655360
contig_bytes : 655360
sum_frag : 0
max_frag : 0
cur_min_alloc : 0
cur_med_alloc : 0
cur_max_alloc : 0
memcg_aware : 1
Chunk (sidelined):
nr_alloc : 0
max_alloc_size : 1072
empty_pop_pages : 1
first_bit : 0
free_bytes : 655360
contig_bytes : 655360
sum_frag : 0
max_frag : 0
cur_min_alloc : 0
cur_med_alloc : 0
cur_max_alloc : 0
memcg_aware : 1
Chunk (sidelined):
nr_alloc : 0
max_alloc_size : 1072
empty_pop_pages : 1
first_bit : 0
free_bytes : 655360
contig_bytes : 655360
sum_frag : 0
max_frag : 0
cur_min_alloc : 0
cur_med_alloc : 0
cur_max_alloc : 0
memcg_aware : 1
Chunk (sidelined):
nr_alloc : 0
max_alloc_size : 1072
empty_pop_pages : 1
first_bit : 0
free_bytes : 655360
contig_bytes : 655360
sum_frag : 0
max_frag : 0
cur_min_alloc : 0
cur_med_alloc : 0
cur_max_alloc : 0
memcg_aware : 1
Chunk (sidelined):
nr_alloc : 0
max_alloc_size : 1072
empty_pop_pages : 1
first_bit : 0
free_bytes : 655360
contig_bytes : 655360
sum_frag : 0
max_frag : 0
cur_min_alloc : 0
cur_med_alloc : 0
cur_max_alloc : 0
memcg_aware : 1
Chunk (sidelined):
nr_alloc : 0
max_alloc_size : 1072
empty_pop_pages : 1
first_bit : 0
free_bytes : 655360
contig_bytes : 655360
sum_frag : 0
max_frag : 0
cur_min_alloc : 0
cur_med_alloc : 0
cur_max_alloc : 0
memcg_aware : 1
Chunk (sidelined):
nr_alloc : 0
max_alloc_size : 1072
empty_pop_pages : 1
first_bit : 0
free_bytes : 655360
contig_bytes : 655360
sum_frag : 0
max_frag : 0
cur_min_alloc : 0
cur_med_alloc : 0
cur_max_alloc : 0
memcg_aware : 1
Chunk (sidelined):
nr_alloc : 0
max_alloc_size : 1072
empty_pop_pages : 1
first_bit : 0
free_bytes : 655360
contig_bytes : 655360
sum_frag : 0
max_frag : 0
cur_min_alloc : 0
cur_med_alloc : 0
cur_max_alloc : 0
memcg_aware : 1
Chunk (sidelined):
nr_alloc : 0
max_alloc_size : 1072
empty_pop_pages : 1
first_bit : 0
free_bytes : 655360
contig_bytes : 655360
sum_frag : 0
max_frag : 0
cur_min_alloc : 0
cur_med_alloc : 0
cur_max_alloc : 0
memcg_aware : 1
Chunk (sidelined):
nr_alloc : 0
max_alloc_size : 1072
empty_pop_pages : 1
first_bit : 0
free_bytes : 655360
contig_bytes : 655360
sum_frag : 0
max_frag : 0
cur_min_alloc : 0
cur_med_alloc : 0
cur_max_alloc : 0
memcg_aware : 1
Chunk (sidelined):
nr_alloc : 0
max_alloc_size : 1072
empty_pop_pages : 1
first_bit : 0
free_bytes : 655360
contig_bytes : 655360
sum_frag : 0
max_frag : 0
cur_min_alloc : 0
cur_med_alloc : 0
cur_max_alloc : 0
memcg_aware : 1
Chunk (sidelined):
nr_alloc : 0
max_alloc_size : 1072
empty_pop_pages : 1
first_bit : 0
free_bytes : 655360
contig_bytes : 655360
sum_frag : 0
max_frag : 0
cur_min_alloc : 0
cur_med_alloc : 0
cur_max_alloc : 0
memcg_aware : 1
Chunk (sidelined):
nr_alloc : 0
max_alloc_size : 1072
empty_pop_pages : 1
first_bit : 0
free_bytes : 655360
contig_bytes : 655360
sum_frag : 0
max_frag : 0
cur_min_alloc : 0
cur_med_alloc : 0
cur_max_alloc : 0
memcg_aware : 1
Chunk (sidelined):
nr_alloc : 0
max_alloc_size : 1072
empty_pop_pages : 1
first_bit : 0
free_bytes : 655360
contig_bytes : 655360
sum_frag : 0
max_frag : 0
cur_min_alloc : 0
cur_med_alloc : 0
cur_max_alloc : 0
memcg_aware : 1
Chunk (sidelined):
nr_alloc : 0
max_alloc_size : 1072
empty_pop_pages : 1
first_bit : 0
free_bytes : 655360
contig_bytes : 655360
sum_frag : 0
max_frag : 0
cur_min_alloc : 0
cur_med_alloc : 0
cur_max_alloc : 0
memcg_aware : 1
Chunk (sidelined):
nr_alloc : 0
max_alloc_size : 1072
empty_pop_pages : 1
first_bit : 0
free_bytes : 655360
contig_bytes : 655360
sum_frag : 0
max_frag : 0
cur_min_alloc : 0
cur_med_alloc : 0
cur_max_alloc : 0
memcg_aware : 1
Chunk (sidelined):
nr_alloc : 0
max_alloc_size : 1072
empty_pop_pages : 1
first_bit : 0
free_bytes : 655360
contig_bytes : 655360
sum_frag : 0
max_frag : 0
cur_min_alloc : 0
cur_med_alloc : 0
cur_max_alloc : 0
memcg_aware : 1
Chunk (sidelined):
nr_alloc : 0
max_alloc_size : 1072
empty_pop_pages : 1
first_bit : 0
free_bytes : 655360
contig_bytes : 655360
sum_frag : 0
max_frag : 0
cur_min_alloc : 0
cur_med_alloc : 0
cur_max_alloc : 0
memcg_aware : 1
Chunk (sidelined):
nr_alloc : 0
max_alloc_size : 1072
empty_pop_pages : 1
first_bit : 0
free_bytes : 655360
contig_bytes : 655360
sum_frag : 0
max_frag : 0
cur_min_alloc : 0
cur_med_alloc : 0
cur_max_alloc : 0
memcg_aware : 1
Chunk (sidelined):
nr_alloc : 0
max_alloc_size : 1072
empty_pop_pages : 1
first_bit : 0
free_bytes : 655360
contig_bytes : 655360
sum_frag : 0
max_frag : 0
cur_min_alloc : 0
cur_med_alloc : 0
cur_max_alloc : 0
memcg_aware : 1
Chunk (sidelined):
nr_alloc : 0
max_alloc_size : 1072
empty_pop_pages : 1
first_bit : 0
free_bytes : 655360
contig_bytes : 655360
sum_frag : 0
max_frag : 0
cur_min_alloc : 0
cur_med_alloc : 0
cur_max_alloc : 0
memcg_aware : 1
Chunk (sidelined):
nr_alloc : 0
max_alloc_size : 1072
empty_pop_pages : 1
first_bit : 0
free_bytes : 655360
contig_bytes : 655360
sum_frag : 0
max_frag : 0
cur_min_alloc : 0
cur_med_alloc : 0
cur_max_alloc : 0
memcg_aware : 1
Chunk (sidelined):
nr_alloc : 0
max_alloc_size : 1072
empty_pop_pages : 1
first_bit : 0
free_bytes : 655360
contig_bytes : 655360
sum_frag : 0
max_frag : 0
cur_min_alloc : 0
cur_med_alloc : 0
cur_max_alloc : 0
memcg_aware : 1
Chunk (sidelined):
nr_alloc : 0
max_alloc_size : 1072
empty_pop_pages : 1
first_bit : 0
free_bytes : 655360
contig_bytes : 655360
sum_frag : 0
max_frag : 0
cur_min_alloc : 0
cur_med_alloc : 0
cur_max_alloc : 0
memcg_aware : 1
Chunk (sidelined):
nr_alloc : 0
max_alloc_size : 1072
empty_pop_pages : 1
first_bit : 0
free_bytes : 655360
contig_bytes : 655360
sum_frag : 0
max_frag : 0
cur_min_alloc : 0
cur_med_alloc : 0
cur_max_alloc : 0
memcg_aware : 1
Chunk (sidelined):
nr_alloc : 0
max_alloc_size : 1072
empty_pop_pages : 1
first_bit : 0
free_bytes : 655360
contig_bytes : 655360
sum_frag : 0
max_frag : 0
cur_min_alloc : 0
cur_med_alloc : 0
cur_max_alloc : 0
memcg_aware : 1
Chunk (sidelined):
nr_alloc : 0
max_alloc_size : 1072
empty_pop_pages : 1
first_bit : 0
free_bytes : 655360
contig_bytes : 655360
sum_frag : 0
max_frag : 0
cur_min_alloc : 0
cur_med_alloc : 0
cur_max_alloc : 0
memcg_aware : 1
Chunk (sidelined):
nr_alloc : 0
max_alloc_size : 1072
empty_pop_pages : 1
first_bit : 0
free_bytes : 655360
contig_bytes : 655360
sum_frag : 0
max_frag : 0
cur_min_alloc : 0
cur_med_alloc : 0
cur_max_alloc : 0
memcg_aware : 1
Chunk (sidelined):
nr_alloc : 0
max_alloc_size : 1072
empty_pop_pages : 1
first_bit : 0
free_bytes : 655360
contig_bytes : 655360
sum_frag : 0
max_frag : 0
cur_min_alloc : 0
cur_med_alloc : 0
cur_max_alloc : 0
memcg_aware : 1
Chunk (sidelined):
nr_alloc : 0
max_alloc_size : 1072
empty_pop_pages : 1
first_bit : 0
free_bytes : 655360
contig_bytes : 655360
sum_frag : 0
max_frag : 0
cur_min_alloc : 0
cur_med_alloc : 0
cur_max_alloc : 0
memcg_aware : 1
Chunk (sidelined):
nr_alloc : 0
max_alloc_size : 1072
empty_pop_pages : 1
first_bit : 0
free_bytes : 655360
contig_bytes : 655360
sum_frag : 0
max_frag : 0
cur_min_alloc : 0
cur_med_alloc : 0
cur_max_alloc : 0
memcg_aware : 1
Chunk (sidelined):
nr_alloc : 0
max_alloc_size : 1072
empty_pop_pages : 1
first_bit : 0
free_bytes : 655360
contig_bytes : 655360
sum_frag : 0
max_frag : 0
cur_min_alloc : 0
cur_med_alloc : 0
cur_max_alloc : 0
memcg_aware : 1
Chunk (sidelined):
nr_alloc : 0
max_alloc_size : 1072
empty_pop_pages : 1
first_bit : 0
free_bytes : 655360
contig_bytes : 655360
sum_frag : 0
max_frag : 0
cur_min_alloc : 0
cur_med_alloc : 0
cur_max_alloc : 0
memcg_aware : 1
Chunk (sidelined):
nr_alloc : 0
max_alloc_size : 1072
empty_pop_pages : 1
first_bit : 0
free_bytes : 655360
contig_bytes : 655360
sum_frag : 0
max_frag : 0
cur_min_alloc : 0
cur_med_alloc : 0
cur_max_alloc : 0
memcg_aware : 1
Chunk (sidelined):
nr_alloc : 0
max_alloc_size : 1072
empty_pop_pages : 1
first_bit : 0
free_bytes : 655360
contig_bytes : 655360
sum_frag : 0
max_frag : 0
cur_min_alloc : 0
cur_med_alloc : 0
cur_max_alloc : 0
memcg_aware : 1
Chunk (sidelined):
nr_alloc : 0
max_alloc_size : 1072
empty_pop_pages : 1
first_bit : 0
free_bytes : 655360
contig_bytes : 655360
sum_frag : 0
max_frag : 0
cur_min_alloc : 0
cur_med_alloc : 0
cur_max_alloc : 0
memcg_aware : 1
Chunk (sidelined):
nr_alloc : 0
max_alloc_size : 1072
empty_pop_pages : 1
first_bit : 0
free_bytes : 655360
contig_bytes : 655360
sum_frag : 0
max_frag : 0
cur_min_alloc : 0
cur_med_alloc : 0
cur_max_alloc : 0
memcg_aware : 1
next prev parent reply other threads:[~2021-04-16 18:41 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-08 3:57 [PATCH v3 0/6] percpu: partial chunk depopulation Roman Gushchin
2021-04-08 3:57 ` [PATCH v3 1/6] percpu: fix a comment about the chunks ordering Roman Gushchin
2021-04-16 21:06 ` Dennis Zhou
2021-04-08 3:57 ` [PATCH v3 2/6] percpu: split __pcpu_balance_workfn() Roman Gushchin
2021-04-16 21:06 ` Dennis Zhou
2021-04-08 3:57 ` [PATCH v3 3/6] percpu: make pcpu_nr_empty_pop_pages per chunk type Roman Gushchin
2021-04-16 21:08 ` Dennis Zhou
2021-04-08 3:57 ` [PATCH v3 4/6] percpu: generalize pcpu_balance_populated() Roman Gushchin
2021-04-16 21:09 ` Dennis Zhou
2021-04-08 3:57 ` [PATCH v3 5/6] percpu: factor out pcpu_check_chunk_hint() Roman Gushchin
2021-04-16 21:15 ` Dennis Zhou
2021-04-08 3:57 ` [PATCH v3 6/6] percpu: implement partial chunk depopulation Roman Gushchin
2021-04-16 12:56 ` [PATCH v3 0/6] percpu: " Pratik Sampat
2021-04-16 14:18 ` Dennis Zhou
2021-04-16 15:28 ` Pratik Sampat
2021-04-16 17:13 ` Roman Gushchin
2021-04-16 18:27 ` Pratik Sampat
2021-04-16 18:34 ` Roman Gushchin
2021-04-16 18:41 ` Pratik Sampat [this message]
2021-04-16 19:09 ` Roman Gushchin
2021-04-16 19:44 ` Pratik Sampat
2021-04-16 20:03 ` Roman Gushchin
2021-04-17 7:08 ` Pratik Sampat
2021-04-16 21:47 ` Dennis Zhou
2021-04-17 7:14 ` Pratik Sampat
2021-04-16 16:21 ` Roman Gushchin
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