Re: [PATCHv2, RFC 12/30] thp, mm: add event counters for huge page alloc on write to a file

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

 



On 03/14/2013 10:50 AM, Kirill A. Shutemov wrote:
> --- a/include/linux/vm_event_item.h
> +++ b/include/linux/vm_event_item.h
> @@ -71,6 +71,8 @@ enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT,
>  		THP_FAULT_FALLBACK,
>  		THP_COLLAPSE_ALLOC,
>  		THP_COLLAPSE_ALLOC_FAILED,
> +		THP_WRITE_ALLOC,
> +		THP_WRITE_FAILED,
>  		THP_SPLIT,
>  		THP_ZERO_PAGE_ALLOC,
>  		THP_ZERO_PAGE_ALLOC_FAILED,

I think these names are a bit terse.  It's certainly not _writes_ that
are failing and "THP_WRITE_FAILED" makes it sound that way.  Also, why
do we need to differentiate these from the existing anon-hugepage vm
stats?  The alloc_pages() call seems to be doing the exact same thing in
the end.  Is one more likely to succeed than the other?
--
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux Ext4 Filesystem]     [Union Filesystem]     [Filesystem Testing]     [Ceph Users]     [Ecryptfs]     [AutoFS]     [Kernel Newbies]     [Share Photos]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux Cachefs]     [Reiser Filesystem]     [Linux RAID]     [Samba]     [Device Mapper]     [CEPH Development]
  Powered by Linux