diff options
| author | Namjae Jeon <namjae.jeon@samsung.com> | 2013-04-23 16:42:53 +0900 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk.kim@samsung.com> | 2013-04-23 18:15:10 +0900 |
| commit | 8e46b3ed11b750a740fec0a313ad9118059fc37b (patch) | |
| tree | d6843e692a91a6b6b83d33a22c05098c30dc7e00 | |
| parent | 848753aa3b19a6513315ca54f22ba1e2732ea94a (diff) | |
f2fs: add tracepoints for GC threads
Add tracepoints for tracing the garbage collector
threads in f2fs with status of collection & type.
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Pankaj Kumar <pankaj.km@samsung.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
[Jaegeuk: modify slightly to show information]
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
| -rw-r--r-- | fs/f2fs/gc.c | 5 | ||||
| -rw-r--r-- | include/trace/events/f2fs.h | 75 |
2 files changed, 80 insertions, 0 deletions
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c index 37b05e1c574c..1ca332455ee2 100644 --- a/fs/f2fs/gc.c +++ b/fs/f2fs/gc.c @@ -23,6 +23,7 @@ #include "node.h" #include "segment.h" #include "gc.h" +#include <trace/events/f2fs.h> static struct kmem_cache *winode_slab; @@ -301,6 +302,10 @@ got_it: set_bit(secno, dirty_i->victim_secmap); } *result = (p.min_segno / p.ofs_unit) * p.ofs_unit; + + trace_f2fs_get_victim(sbi->sb, type, gc_type, &p, + sbi->cur_victim_sec, + prefree_segments(sbi), free_segments(sbi)); } mutex_unlock(&dirty_i->seglist_lock); diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h index 924e69aa984f..6f7cf7af8899 100644 --- a/include/trace/events/f2fs.h +++ b/include/trace/events/f2fs.h @@ -18,6 +18,33 @@ { WRITE_FLUSH, "WRITE_FLUSH" }, \ { WRITE_FUA, "WRITE_FUA" }) +#define show_data_type(type) \ + __print_symbolic(type, \ + { CURSEG_HOT_DATA, "Hot DATA" }, \ + { CURSEG_WARM_DATA, "Warm DATA" }, \ + { CURSEG_COLD_DATA, "Cold DATA" }, \ + { CURSEG_HOT_NODE, "Hot NODE" }, \ + { CURSEG_WARM_NODE, "Warm NODE" }, \ + { CURSEG_COLD_NODE, "Cold NODE" }, \ + { NO_CHECK_TYPE, "No TYPE" }) + +#define show_gc_type(type) \ + __print_symbolic(type, \ + { FG_GC, "Foreground GC" }, \ + { BG_GC, "Background GC" }) + +#define show_alloc_mode(type) \ + __print_symbolic(type, \ + { LFS, "LFS-mode" }, \ + { SSR, "SSR-mode" }) + +#define show_victim_policy(type) \ + __print_symbolic(type, \ + { GC_GREEDY, "Greedy" }, \ + { GC_CB, "Cost-Benefit" }) + +struct victim_sel_policy; + DECLARE_EVENT_CLASS(f2fs__inode, TP_PROTO(struct inode *inode), @@ -439,6 +466,54 @@ TRACE_EVENT(f2fs_get_data_block, __entry->ret) ); +TRACE_EVENT(f2fs_get_victim, + + TP_PROTO(struct super_block *sb, int type, int gc_type, + struct victim_sel_policy *p, unsigned int pre_victim, + unsigned int prefree, unsigned int free), + + TP_ARGS(sb, type, gc_type, p, pre_victim, prefree, free), + + TP_STRUCT__entry( + __field(dev_t, dev) + __field(int, type) + __field(int, gc_type) + __field(int, alloc_mode) + __field(int, gc_mode) + __field(unsigned int, victim) + __field(unsigned int, ofs_unit) + __field(unsigned int, pre_victim) + __field(unsigned int, prefree) + __field(unsigned int, free) + ), + + TP_fast_assign( + __entry->dev = sb->s_dev; + __entry->type = type; + __entry->gc_type = gc_type; + __entry->alloc_mode = p->alloc_mode; + __entry->gc_mode = p->gc_mode; + __entry->victim = p->min_segno; + __entry->ofs_unit = p->ofs_unit; + __entry->pre_victim = pre_victim; + __entry->prefree = prefree; + __entry->free = free; + ), + + TP_printk("dev = (%d,%d), type = %s, policy = (%s, %s, %s), victim = %u " + "ofs_unit = %u, pre_victim_secno = %d, prefree = %u, free = %u", + show_dev(__entry), + show_data_type(__entry->type), + show_gc_type(__entry->gc_type), + show_alloc_mode(__entry->alloc_mode), + show_victim_policy(__entry->gc_mode), + __entry->victim, + __entry->ofs_unit, + (int)__entry->pre_victim, + __entry->prefree, + __entry->free) +); + #endif /* _TRACE_F2FS_H */ /* This part must be outside protection */ |