On Mon, Oct 29, 2012 at 12:30 PM, <zwu.kernel@xxxxxxxxx> wrote: > From: Zhi Yong Wu <wuzhy@xxxxxxxxxxxxxxxxxx> > > NOTE: > > The patchset can be obtained via my kernel dev git on github: > git@xxxxxxxxxx:wuzhy/kernel.git hot_tracking > If you're interested, you can also can review them via > https://github.com/wuzhy/kernel/commits/hot_tracking hi, guys, The latest code change has been pushed into my above dev git tree. If no further comments are done, i will post next version soon. > > For more info, please check hot_tracking.txt in Documentation > > TODO List: > > 1.) Need to do scalability or performance tests. > 2.) Need one simpler but effective temp calc'ing function > 3.) How to save the file temperature among the umount to be able to > preserve the file tempreture after reboot > > Ben Chociej, Matt Lupfer and Conor Scott originally wrote this code to > be very btrfs-specific. I've taken their code and attempted to > make it more generic and integrate it at the VFS level. > > Changelog from v3: > 1.) Rewritten debugfs support based seq_file operation. [Dave Chinner] > 2.) Refactored workqueue support. [Dave Chinner] > 3.) Turn some Micro into be tunable [Zhiyong, Zheng Liu] > TIME_TO_KICK, and HEAT_UPDATE_DELAY > 4.) Introduce hot func registering framework [Zhiyong] > 5.) Remove global variable for hot tracking [Zhiyong] > 6.) Add xfs hot tracking support [Dave Chinner] > 7.) Add ext4 hot tracking support [Zheng Liu] > 8.) Cleanedup a lot of other issues [Dave Chinner] > > v3: > 1.) Converted to Radix trees, not RB-tree [Zhiyong, Dave Chinner] > 2.) Added memory shrinker [Dave Chinner] > > v2: > 1.) Converted to one workqueue to update map info periodically [Dave Chinner] > 2.) Cleanedup a lot of other issues [Dave Chinner] > > v1: > 1.) Reduce new files and put all in fs/hot_tracking.[ch] [Dave Chinner] > 2.) Add btrfs hot tracking support [Zhiyong] > 3.) The first three patches can probably just be flattened into one. > [Marco Stornelli , Dave Chinner] > > Dave Chinner (1): > xfs: add hot tracking support > > Zheng Liu (1): > ext4: add hot tracking support > > Zhi Yong Wu (17): > vfs: introduce private radix tree structures > vfs: initialize and free data structures > vfs: add I/O frequency update function > vfs: add two map arrays > vfs: add hooks to enable hot tracking > vfs: add temp calculation function > vfs: add map info update function > vfs: add aging function > vfs: add one work queue > vfs: introduce hot func register framework > vfs: register one shrinker > vfs: add one ioctl interface > debugfs: introduce one function > vfs: add debugfs support > sysfs: add two hot_track proc files > btrfs: add hot tracking support > vfs: add documentation > > Documentation/filesystems/00-INDEX | 2 + > Documentation/filesystems/hot_tracking.txt | 262 ++++++ > fs/Makefile | 2 +- > fs/btrfs/ctree.h | 1 + > fs/btrfs/super.c | 22 +- > fs/compat_ioctl.c | 5 + > fs/dcache.c | 2 + > fs/debugfs/inode.c | 26 + > fs/direct-io.c | 6 + > fs/ext4/ext4.h | 3 + > fs/ext4/super.c | 13 +- > fs/hot_tracking.c | 1367 ++++++++++++++++++++++++++++ > fs/hot_tracking.h | 58 ++ > fs/ioctl.c | 78 ++ > fs/xfs/xfs_mount.h | 1 + > fs/xfs/xfs_super.c | 16 + > include/linux/debugfs.h | 9 + > include/linux/fs.h | 4 + > include/linux/hot_tracking.h | 149 +++ > kernel/sysctl.c | 14 + > mm/filemap.c | 6 + > mm/page-writeback.c | 12 + > mm/readahead.c | 6 + > 23 files changed, 2061 insertions(+), 3 deletions(-) > create mode 100644 Documentation/filesystems/hot_tracking.txt > create mode 100644 fs/hot_tracking.c > create mode 100644 fs/hot_tracking.h > create mode 100644 include/linux/hot_tracking.h > > -- > 1.7.6.5 > > -- > 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 -- Regards, Zhi Yong Wu -- 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
