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authorDave Barach <dave@barachs.net>2020-01-29 18:05:24 -0500
committerFlorin Coras <florin.coras@gmail.com>2020-01-30 20:45:18 +0000
commitc25048bd05a319511aa7386f75e1fae2b2a623c4 (patch)
tree4254d34aba20058eb04213ffe4ab738f0dc250fd /src/vlib
parent91592c0c9cdd1bc61a2796e41a8becc30aaf8082 (diff)
vppinfra: improve clocks_per_second convergence
Apply exponential smoothing to the clock rate update calculation in clib_time_verify_frequency(), with a half-life of 1 minute and a sampling frequency of 16 seconds. Within 5 minutes or so, the calculation converges With each rate recalculation: reset total_cpu_time based on the kernel timebase delta since vpp started, and the new clock rate Improve the "show clock [verbose]" debug CLI command. BFD echo + echo fail tests marked off until the BFD code can be reworked a bit. Type: fix Signed-off-by: Dave Barach <dave@barachs.net> Change-Id: I24e88a78819b12867736c875067b386ef6115c5c
Diffstat (limited to 'src/vlib')
-rw-r--r--src/vlib/threads.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/src/vlib/threads.c b/src/vlib/threads.c
index 07e1d79cf4c..e6733d55b6f 100644
--- a/src/vlib/threads.c
+++ b/src/vlib/threads.c
@@ -1848,11 +1848,11 @@ show_clock_command_fn (vlib_main_t * vm,
unformat_input_t * input, vlib_cli_command_t * cmd)
{
int i;
- f64 now;
+ int verbose = 0;
- now = vlib_time_now (vm);
+ (void) unformat (input, "verbose %=", &verbose, 1);
- vlib_cli_output (vm, "Time now %.9f", now);
+ vlib_cli_output (vm, "%U", format_clib_time, &vm->clib_time, verbose);
if (vec_len (vlib_mains) == 1)
return 0;
@@ -1864,6 +1864,10 @@ show_clock_command_fn (vlib_main_t * vm,
{
if (vlib_mains[i] == 0)
continue;
+
+ vlib_cli_output (vm, "%d: %U", i, format_clib_time,
+ &vlib_mains[i]->clib_time, verbose);
+
vlib_cli_output (vm, "Thread %d offset %.9f error %.9f", i,
vlib_mains[i]->time_offset,
vm->time_last_barrier_release -