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| author |   Dave Barach <dave@barachs.net> | 2020-02-17 17:07:12 -0500 |
|---|---|---|
| committer |   Florin Coras <florin.coras@gmail.com> | 2020-02-18 18:42:22 +0000 |
| commit | 000a029e4a6a481f35b978dfe474c82d8da88e95 (patch) | |
| tree | 287b547c120b95f6b93dc9e2556fc68e52b82cf1 /src/vlib/main.h | |
| parent | ff19e3bf4fc10d17e3bafa798e6048ad473c6bd8 (diff) | |
vlib: calculate per-worker loops/second metric
Use exponential smoothing. Each sample has a half-life of 1
second. reported_rate(t) = reported_rate(t-1) * K + rate(t)*(1-K)
Sample every 20ms, i.e. 50 samples per second
K = exp (-1.0/20.0);
K = 0.95;
Type: feature
Signed-off-by: Dave Barach <dave@barachs.net>
Change-Id: I9aea5dd5fecfaefffb78245316adb4bf62eb2bd4
Diffstat (limited to 'src/vlib/main.h')
| -rw-r--r-- | src/vlib/main.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/vlib/main.h b/src/vlib/main.h index af6539efc75..0e65c817ae1 100644 --- a/src/vlib/main.h +++ b/src/vlib/main.h @@ -251,6 +251,14 @@ typedef struct vlib_main_t */ int need_vlib_worker_thread_node_runtime_update; + /* Dispatch loop time accounting */ + u64 loops_this_reporting_interval; + f64 loop_interval_end; + f64 loop_interval_start; + f64 loops_per_second; + f64 seconds_per_loop; + f64 damping_constant; + /* * Barrier epoch - Set to current time, each time barrier_sync or * barrier_release is called with zero recursion. |