Searched hist:ea1a29a0bdfffd56ca98335c0655308e8d7d0e22 (Results 1 – 2 of 2) sorted by relevance
| /linux/fs/f2fs/ |
| H A D | node.h | diff ea1a29a0bdfffd56ca98335c0655308e8d7d0e22 Mon Oct 12 11:08:48 CEST 2015 Chao Yu <chao2.yu@samsung.com> f2fs: export ra_nid_pages to sysfs
After finishing building free nid cache, we will try to readahead
asynchronously 4 more pages for the next reloading, the count of
readahead nid pages is fixed.
In some case, like SMR drive, read less sectors with fixed count
each time we trigger RA may be low efficient, since we will face
high seeking overhead, so we'd better let user to configure this
parameter from sysfs in specific workload.
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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| H A D | super.c | diff ea1a29a0bdfffd56ca98335c0655308e8d7d0e22 Mon Oct 12 11:08:48 CEST 2015 Chao Yu <chao2.yu@samsung.com> f2fs: export ra_nid_pages to sysfs
After finishing building free nid cache, we will try to readahead
asynchronously 4 more pages for the next reloading, the count of
readahead nid pages is fixed.
In some case, like SMR drive, read less sectors with fixed count
each time we trigger RA may be low efficient, since we will face
high seeking overhead, so we'd better let user to configure this
parameter from sysfs in specific workload.
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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