Re: [PATCH v8 2/2] arm64: support batched/deferred tlb shootdown during page reclamation

n 50% and saved the > time used by ptep_clear_flush(). > > This patch extends arch_tlbbatch_add_mm() to take an address of the > target page to support the feature on arm64. Also rename it to > arch_tlbbatch_add_pending() to better match its function since we > don't need to han

Re: [PATCH v2 00/33] Per-VMA locks

Punit Agrawal writes: > Suren Baghdasaryan writes: > >> Previous version: >> v1: https://lore.kernel.org/all/20230109205336.3665937-1-sur...@google.com/ >> RFC: https://lore.kernel.org/all/20220901173516.702122-1-sur...@google.com/ >> >> LWN article descri

Re: [External] [PATCH v2 00/33] Per-VMA locks

Suren Baghdasaryan writes: > Previous version: > v1: https://lore.kernel.org/all/20230109205336.3665937-1-sur...@google.com/ > RFC: https://lore.kernel.org/all/20220901173516.702122-1-sur...@google.com/ > > LWN article describing the feature: > https://lwn.net/Articles/906852/ > > Per-vma locks i

Re: [External] [PATCH v5 0/2] arm64: support batched/deferred tlb shootdown during page reclamation

n a rk3399 based system with benefits visible when running the tests on either of the clusters. So, for the series, Tested-by: Punit Agrawal Thanks, Punit [...]

Re: [PATCH v4 2/2] arm64: support batched/deferred tlb shootdown during page reclamation

Barry Song <21cn...@gmail.com> writes: > On Sat, Oct 29, 2022 at 2:11 AM Punit Agrawal > wrote: >> >> Yicong Yang writes: >> >> > On 2022/10/27 22:19, Punit Agrawal wrote: >> >> >> >> [ Apologies for chiming in late in the conversa

Re: [PATCH v4 2/2] arm64: support batched/deferred tlb shootdown during page reclamation

Anshuman Khandual writes: > On 10/28/22 03:25, Barry Song wrote: >> On Fri, Oct 28, 2022 at 3:19 AM Punit Agrawal >> wrote: >>> >>> [ Apologies for chiming in late in the conversation ] >>> >>> Anshuman Khandual writes: >>> >>&g

Re: [PATCH v4 2/2] arm64: support batched/deferred tlb shootdown during page reclamation

Yicong Yang writes: > On 2022/10/27 22:19, Punit Agrawal wrote: >> >> [ Apologies for chiming in late in the conversation ] >> >> Anshuman Khandual writes: >> >>> On 9/28/22 05:53, Barry Song wrote: >>>> On Tue, Sep 27, 2022 at 10:15

Re: [PATCH v4 2/2] arm64: support batched/deferred tlb shootdown during page reclamation

[ Apologies for chiming in late in the conversation ] Anshuman Khandual writes: > On 9/28/22 05:53, Barry Song wrote: >> On Tue, Sep 27, 2022 at 10:15 PM Yicong Yang wrote: >>> >>> On 2022/9/27 14:16, Anshuman Khandual wrote: [...] On 9/21/22 14:13, Yicong Yang wrote: > +st

Re: [PATCH v10 02/25] x86/mm: define ARCH_SUPPORTS_SPECULATIVE_PAGE_FAULT

Laurent Dufour writes: > On 08/05/2018 13:04, Punit Agrawal wrote: >> Hi Laurent, >> >> Laurent Dufour writes: >> >>> Set ARCH_SUPPORTS_SPECULATIVE_PAGE_FAULT which turns on the >>> Speculative Page Fault handler when building for 64bit. >>&g

Re: [PATCH v10 02/25] x86/mm: define ARCH_SUPPORTS_SPECULATIVE_PAGE_FAULT

Hi Laurent, Laurent Dufour writes: > Set ARCH_SUPPORTS_SPECULATIVE_PAGE_FAULT which turns on the > Speculative Page Fault handler when building for 64bit. > > Cc: Thomas Gleixner > Signed-off-by: Laurent Dufour > --- > arch/x86/Kconfig | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/

Re: [PATCH v10 24/25] x86/mm: add speculative pagefault handling

Laurent Dufour writes: > On 30/04/2018 20:43, Punit Agrawal wrote: >> Hi Laurent, >> >> I am looking to add support for speculative page fault handling to >> arm64 (effectively porting this patch) and had a few questions. >> Apologies if I've missed an o

Re: [PATCH v10 00/25] Speculative page faults

Hi Laurent, Thanks for your reply. Laurent Dufour writes: > On 02/05/2018 16:17, Punit Agrawal wrote: >> Hi Laurent, >> >> One query below - >> >> Laurent Dufour writes: >> >> [...] >> >>> >>> Ebizzy: >>> --

Re: [PATCH v10 00/25] Speculative page faults

Hi Laurent, One query below - Laurent Dufour writes: [...] > > Ebizzy: > --- > The test is counting the number of records per second it can manage, the > higher is the best. I run it like this 'ebizzy -mTRp'. To get consistent > result I repeated the test 100 times and measure the average

Re: [PATCH v10 17/25] mm: protect mm_rb tree with a rwlock

Hi Laurent, One nitpick below. On Tue, Apr 17, 2018 at 3:33 PM, Laurent Dufour wrote: > This change is inspired by the Peter's proposal patch [1] which was > protecting the VMA using SRCU. Unfortunately, SRCU is not scaling well in > that particular case, and it is introducing major performance

Re: [PATCH v10 24/25] x86/mm: add speculative pagefault handling

Hi Laurent, I am looking to add support for speculative page fault handling to arm64 (effectively porting this patch) and had a few questions. Apologies if I've missed an obvious explanation for my queries. I'm jumping in bit late to the discussion. On Tue, Apr 17, 2018 at 3:33 PM, Laurent Dufour