diff options
| author | Jeff Hostetler <jeffhost@microsoft.com> | 2022-10-24 16:41:07 +0300 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2022-10-24 22:45:26 +0300 |
| commit | 81071626ba1ec54ad72de1e0a9a49c78eb87a2c8 (patch) | |
| tree | 2b4b5244c2b6f5b24ff586680637b4a7b4f9c7b0 /trace2/tr2_tls.h | |
| parent | 8ad575646c0b1e927a05650a1ec64125121ae591 (diff) | |
trace2: add global counter mechanism
Add global counters mechanism to Trace2.
The Trace2 counters mechanism adds the ability to create a set of
global counter variables and an API to increment them efficiently.
Counters can optionally report per-thread usage in addition to the sum
across all threads.
Counter events are emitted to the Trace2 logs when a thread exits and
at process exit.
Counters are an alternative to `data` and `data_json` events.
Counters are useful when you want to measure something across the life
of the process, when you don't want per-measurement events for
performance reasons, when the data does not fit conveniently within a
region, or when your control flow does not easily let you write the
final total. For example, you might use this to report the number of
calls to unzip() or the number of de-delta steps during a checkout.
Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'trace2/tr2_tls.h')
| -rw-r--r-- | trace2/tr2_tls.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/trace2/tr2_tls.h b/trace2/tr2_tls.h index a064b66e4c..f9049805d4 100644 --- a/trace2/tr2_tls.h +++ b/trace2/tr2_tls.h @@ -2,6 +2,7 @@ #define TR2_TLS_H #include "strbuf.h" +#include "trace2/tr2_ctr.h" #include "trace2/tr2_tmr.h" /* @@ -22,8 +23,11 @@ struct tr2tls_thread_ctx { size_t nr_open_regions; /* plays role of "nr" in ALLOC_GROW */ int thread_id; struct tr2_timer_block timer_block; + struct tr2_counter_block counter_block; unsigned int used_any_timer:1; unsigned int used_any_per_thread_timer:1; + unsigned int used_any_counter:1; + unsigned int used_any_per_thread_counter:1; }; /* |