From: Chao Yu <chao@kernel.org> To: Daeho Jeong <daeho43@gmail.com>, Daeho Jeong <daehojeong@google.com> Cc: linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, kernel-team@android.com Subject: Re: [f2fs-dev] [PATCH v2] f2fs: add sysfs nodes to get GC info for each GC mode Date: Sat, 10 Jul 2021 08:17:02 +0800 [thread overview] Message-ID: <4f88fac8-2838-45ac-8f87-789b8b7c2d09@kernel.org> (raw) In-Reply-To: <20210709204430.1293298-1-daeho43@gmail.com> On 2021/7/10 4:44, Daeho Jeong wrote: > From: Daeho Jeong <daehojeong@google.com> > > Added gc_dirty_segs and gc_dirty_segs_mode sysfs nodes. > 1) "gc_dirty_segs" shows how many dirty segments have been > reclaimed by GC during a specific GC mode. > 2) "gc_dirty_segs_mode" is used to control for which gc mode > the "gc_dirty_segs" node shows. > > Signed-off-by: Daeho Jeong <daehojeong@google.com> > --- > Documentation/ABI/testing/sysfs-fs-f2fs | 14 +++++++++++++ > fs/f2fs/debug.c | 9 ++++++++ > fs/f2fs/f2fs.h | 5 +++++ > fs/f2fs/gc.c | 1 + > fs/f2fs/sysfs.c | 28 +++++++++++++++++++++++++ > 5 files changed, 57 insertions(+) > > diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs > index 95155e4ec7fe..0d863eb185f6 100644 > --- a/Documentation/ABI/testing/sysfs-fs-f2fs > +++ b/Documentation/ABI/testing/sysfs-fs-f2fs > @@ -493,3 +493,17 @@ Contact: "Chao Yu" <yuchao0@huawei.com> > Description: When ATGC is on, it controls age threshold to bypass GCing young > candidates whose age is not beyond the threshold, by default it was > initialized as 604800 seconds (equals to 7 days). > + > +What: /sys/fs/f2fs/<disk>/gc_dirty_segs How about renaming gc_dirty_segs to gc_reclaimed_segments? > +Date: July 2021 > +Contact: "Daeho Jeong" <daehojeong@google.com> > +Description: Show how many dirty segments have been reclaimed by GC during > + a specific GC mode (0: GC normal, 1: GC idle CB, 2: GC idle greedy, > + 3: gc idle AT, 4: GC urgent high, 5: GC urgent low) 3. GC idle AT > + You can re-initialize this value to "0". > + > +What: /sys/fs/f2fs/<disk>/gc_dirty_segs_mode You know, F2FS_IOC_FLUSH_DEVICE/F2FS_IOC_RESIZE_FS needs to migrate all blocks of target segment to other place, no matter the segment has partially or fully valid blocks, so it looks 'gc_segment_mode' will be more appropriate? Thanks,
WARNING: multiple messages have this Message-ID (diff)
From: Chao Yu <chao@kernel.org> To: Daeho Jeong <daeho43@gmail.com>, Daeho Jeong <daehojeong@google.com> Cc: kernel-team@android.com, linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net Subject: Re: [f2fs-dev] [PATCH v2] f2fs: add sysfs nodes to get GC info for each GC mode Date: Sat, 10 Jul 2021 08:17:02 +0800 [thread overview] Message-ID: <4f88fac8-2838-45ac-8f87-789b8b7c2d09@kernel.org> (raw) In-Reply-To: <20210709204430.1293298-1-daeho43@gmail.com> On 2021/7/10 4:44, Daeho Jeong wrote: > From: Daeho Jeong <daehojeong@google.com> > > Added gc_dirty_segs and gc_dirty_segs_mode sysfs nodes. > 1) "gc_dirty_segs" shows how many dirty segments have been > reclaimed by GC during a specific GC mode. > 2) "gc_dirty_segs_mode" is used to control for which gc mode > the "gc_dirty_segs" node shows. > > Signed-off-by: Daeho Jeong <daehojeong@google.com> > --- > Documentation/ABI/testing/sysfs-fs-f2fs | 14 +++++++++++++ > fs/f2fs/debug.c | 9 ++++++++ > fs/f2fs/f2fs.h | 5 +++++ > fs/f2fs/gc.c | 1 + > fs/f2fs/sysfs.c | 28 +++++++++++++++++++++++++ > 5 files changed, 57 insertions(+) > > diff --git a/Documentation/ABI/testing/sysfs-fs-f2fs b/Documentation/ABI/testing/sysfs-fs-f2fs > index 95155e4ec7fe..0d863eb185f6 100644 > --- a/Documentation/ABI/testing/sysfs-fs-f2fs > +++ b/Documentation/ABI/testing/sysfs-fs-f2fs > @@ -493,3 +493,17 @@ Contact: "Chao Yu" <yuchao0@huawei.com> > Description: When ATGC is on, it controls age threshold to bypass GCing young > candidates whose age is not beyond the threshold, by default it was > initialized as 604800 seconds (equals to 7 days). > + > +What: /sys/fs/f2fs/<disk>/gc_dirty_segs How about renaming gc_dirty_segs to gc_reclaimed_segments? > +Date: July 2021 > +Contact: "Daeho Jeong" <daehojeong@google.com> > +Description: Show how many dirty segments have been reclaimed by GC during > + a specific GC mode (0: GC normal, 1: GC idle CB, 2: GC idle greedy, > + 3: gc idle AT, 4: GC urgent high, 5: GC urgent low) 3. GC idle AT > + You can re-initialize this value to "0". > + > +What: /sys/fs/f2fs/<disk>/gc_dirty_segs_mode You know, F2FS_IOC_FLUSH_DEVICE/F2FS_IOC_RESIZE_FS needs to migrate all blocks of target segment to other place, no matter the segment has partially or fully valid blocks, so it looks 'gc_segment_mode' will be more appropriate? Thanks, _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
next prev parent reply other threads:[~2021-07-10 0:17 UTC|newest] Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-07-09 20:44 [PATCH v2] f2fs: add sysfs nodes to get GC info for each GC mode Daeho Jeong 2021-07-09 20:44 ` [f2fs-dev] " Daeho Jeong 2021-07-10 0:17 ` Chao Yu [this message] 2021-07-10 0:17 ` Chao Yu 2021-07-10 5:18 ` Daeho Jeong 2021-07-10 5:18 ` Daeho Jeong
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