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authorJeff Hostetler <jeffhost@microsoft.com>2019-02-22 22:25:07 (GMT)
committerJunio C Hamano <gitster@pobox.com>2019-02-22 23:28:21 (GMT)
commit42fee7a3889b558aa8b79dfa2802d8fd8fbd8c60 (patch)
treede29557406ad2d5f5341e33bf8bab24807a6df62 /read-cache.c
parent6206286e49b88bd4bb709c62e7b7455685c1993a (diff)
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trace2:data: add trace2 instrumentation to index read/write
Add trace2 events to measure reading and writing the index. Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'read-cache.c')
-rw-r--r--read-cache.c51
1 files changed, 50 insertions, 1 deletions
diff --git a/read-cache.c b/read-cache.c
index 0e0c93e..eee8351 100644
--- a/read-cache.c
+++ b/read-cache.c
@@ -2220,6 +2220,16 @@ int do_read_index(struct index_state *istate, const char *path, int must_exist)
load_index_extensions(&p);
}
munmap((void *)mmap, mmap_size);
+
+ /*
+ * TODO trace2: replace "the_repository" with the actual repo instance
+ * that is associated with the given "istate".
+ */
+ trace2_data_intmax("index", the_repository, "read/version",
+ istate->version);
+ trace2_data_intmax("index", the_repository, "read/cache_nr",
+ istate->cache_nr);
+
return istate->cache_nr;
unmap:
@@ -2251,9 +2261,17 @@ int read_index_from(struct index_state *istate, const char *path,
if (istate->initialized)
return istate->cache_nr;
+ /*
+ * TODO trace2: replace "the_repository" with the actual repo instance
+ * that is associated with the given "istate".
+ */
+ trace2_region_enter_printf("index", "do_read_index", the_repository,
+ "%s", path);
trace_performance_enter();
ret = do_read_index(istate, path, 0);
trace_performance_leave("read cache %s", path);
+ trace2_region_leave_printf("index", "do_read_index", the_repository,
+ "%s", path);
split_index = istate->split_index;
if (!split_index || is_null_oid(&split_index->base_oid)) {
@@ -2269,7 +2287,11 @@ int read_index_from(struct index_state *istate, const char *path,
base_oid_hex = oid_to_hex(&split_index->base_oid);
base_path = xstrfmt("%s/sharedindex.%s", gitdir, base_oid_hex);
+ trace2_region_enter_printf("index", "shared/do_read_index",
+ the_repository, "%s", base_path);
ret = do_read_index(split_index->base, base_path, 1);
+ trace2_region_leave_printf("index", "shared/do_read_index",
+ the_repository, "%s", base_path);
if (!oideq(&split_index->base_oid, &split_index->base->oid))
die(_("broken index, expect %s in %s, got %s"),
base_oid_hex, base_path,
@@ -2976,6 +2998,16 @@ static int do_write_index(struct index_state *istate, struct tempfile *tempfile,
istate->timestamp.sec = (unsigned int)st.st_mtime;
istate->timestamp.nsec = ST_MTIME_NSEC(st);
trace_performance_since(start, "write index, changed mask = %x", istate->cache_changed);
+
+ /*
+ * TODO trace2: replace "the_repository" with the actual repo instance
+ * that is associated with the given "istate".
+ */
+ trace2_data_intmax("index", the_repository, "write/version",
+ istate->version);
+ trace2_data_intmax("index", the_repository, "write/cache_nr",
+ istate->cache_nr);
+
return 0;
}
@@ -2995,7 +3027,18 @@ static int commit_locked_index(struct lock_file *lk)
static int do_write_locked_index(struct index_state *istate, struct lock_file *lock,
unsigned flags)
{
- int ret = do_write_index(istate, lock->tempfile, 0);
+ int ret;
+
+ /*
+ * TODO trace2: replace "the_repository" with the actual repo instance
+ * that is associated with the given "istate".
+ */
+ trace2_region_enter_printf("index", "do_write_index", the_repository,
+ "%s", lock->tempfile->filename.buf);
+ ret = do_write_index(istate, lock->tempfile, 0);
+ trace2_region_leave_printf("index", "do_write_index", the_repository,
+ "%s", lock->tempfile->filename.buf);
+
if (ret)
return ret;
if (flags & COMMIT_LOCK)
@@ -3080,7 +3123,13 @@ static int write_shared_index(struct index_state *istate,
int ret;
move_cache_to_base_index(istate);
+
+ trace2_region_enter_printf("index", "shared/do_write_index",
+ the_repository, "%s", (*temp)->filename.buf);
ret = do_write_index(si->base, *temp, 1);
+ trace2_region_enter_printf("index", "shared/do_write_index",
+ the_repository, "%s", (*temp)->filename.buf);
+
if (ret)
return ret;
ret = adjust_shared_perm(get_tempfile_path(*temp));