diff options
| author | Chao Yu <yuchao0@huawei.com> | 2016-05-09 19:56:30 +0800 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-04-13 12:33:31 +0200 |
| commit | f0ce8ca0996d694e8798f46cf169e32e27094b58 (patch) | |
| tree | b0c05758320f92443dd1255f521639c0cf74a07e /include/trace/events | |
| parent | d46bc42cf8e4a25d84b5e2571851116d6e35008e (diff) | |
f2fs: support in batch multi blocks preallocation
This patch introduces reserve_new_blocks to make preallocation of multi
blocks as in batch operation, so it can avoid lots of redundant
operation, result in better performance.
In virtual machine, with rotational device:
time fallocate -l 32G /mnt/f2fs/file
Before:
real 0m4.584s
user 0m0.000s
sys 0m4.580s
After:
real 0m0.292s
user 0m0.000s
sys 0m0.272s
In x86, with SSD:
time fallocate -l 500G $MNT/testfile
Before : 24.758 s
After : 1.604 s
Signed-off-by: Chao Yu <yuchao0@huawei.com>
[Jaegeuk Kim: fix bugs and add performance numbers measured in x86.]
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'include/trace/events')
| -rw-r--r-- | include/trace/events/f2fs.h | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h index cbbdda4f6..d4e01e6ed 100644 --- a/include/trace/events/f2fs.h +++ b/include/trace/events/f2fs.h @@ -659,28 +659,32 @@ TRACE_EVENT(f2fs_direct_IO_exit, __entry->ret) ); -TRACE_EVENT(f2fs_reserve_new_block, +TRACE_EVENT(f2fs_reserve_new_blocks, - TP_PROTO(struct inode *inode, nid_t nid, unsigned int ofs_in_node), + TP_PROTO(struct inode *inode, nid_t nid, unsigned int ofs_in_node, + blkcnt_t count), - TP_ARGS(inode, nid, ofs_in_node), + TP_ARGS(inode, nid, ofs_in_node, count), TP_STRUCT__entry( __field(dev_t, dev) __field(nid_t, nid) __field(unsigned int, ofs_in_node) + __field(blkcnt_t, count) ), TP_fast_assign( __entry->dev = inode->i_sb->s_dev; __entry->nid = nid; __entry->ofs_in_node = ofs_in_node; + __entry->count = count; ), - TP_printk("dev = (%d,%d), nid = %u, ofs_in_node = %u", + TP_printk("dev = (%d,%d), nid = %u, ofs_in_node = %u, count = %llu", show_dev(__entry), (unsigned int)__entry->nid, - __entry->ofs_in_node) + __entry->ofs_in_node, + (unsigned long long)__entry->count) ); DECLARE_EVENT_CLASS(f2fs__submit_page_bio, |