Re: Possible regression with file madvise(MADV_COLLAPSE)

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Sun, 2024-10-13 at 14:04 +0300, Avi Kivity wrote:
> > > 
> > >    text-hugepage-689146 [023] 200457.073794:
> > > mm_khugepaged_scan_file:
> > > mm=0xffff92fc512aac00, scan_pfn=0x5a4310, filename=text-hugepage,
> > > present=0, swap=0, result=page_compound
> > 
> > Aha, it is because v6.10 doesn't support collapse non-PMD order
> > large
> > folios. It has been fixed in v6.12-rc1. The patch series is:
> > https://lore.kernel.org/all/cover.1724140601.git.baolin.wang@linux.
> > al
> > ibaba.com/
> > 
> > The subject says "shmem", but it actually works for regular files
> > too.
> 
> 
> 
> Thanks a lot. I will retest when 6.12 reaches Fedora testing.
> 

It is available, so I retested it (6.12-rc2). I confirm it works (and
delivers a nice performance improvement).






[Index of Archives]     [Linux ARM Kernel]     [Linux ARM]     [Linux Omap]     [Fedora ARM]     [IETF Annouce]     [Bugtraq]     [Linux OMAP]     [Linux MIPS]     [eCos]     [Asterisk Internet PBX]     [Linux API]

  Powered by Linux