Re: [PATCH, RFC 0/3] Introduce new O_HOT and O_COLD flags

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


On 04/20/2012 07:01 AM, James Bottomley wrote:
The concern I have is that the notion of hot and cold files *isn't*
propagated to the page cache, it's just shared between the fs and the
disk.

Bingo -- full-file hint is too coarse-grained for some workloads. Page granularity would propagate to the VM as well as block layer, and give the required flexibility to all workloads. As well as covering the full-file case.

	Jeff


--
To unsubscribe from this list: send the line "unsubscribe linux-ext4" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Reiser Filesystem Development]     [Kernel Newbies]     [Share Photos]     [Security]     [Netfilter]     [Bugtraq]     [Linux FS]     [Photo]     [Yosemite]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Samba]     [Video 4 Linux]     [Device Mapper]     [Linux Resources]


  Powered by Linux