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| author | Denys Vlasenko | 2023-05-07 18:35:22 +0200 |
|---|---|---|
| committer | Denys Vlasenko | 2023-05-07 18:35:22 +0200 |
| commit | c6058d221a44718d086e067b08b070bdce16a7ef (patch) | |
| tree | 1b102c46f2b236a9a3da1ab191a0ed895f93fa4d | |
| parent | 382e1634972f7aab883259dd22cf721d1c205055 (diff) | |
| download | busybox-c6058d221a44718d086e067b08b070bdce16a7ef.zip busybox-c6058d221a44718d086e067b08b070bdce16a7ef.tar.gz | |
nmeter: improve %T fractionals display
function old new delta
nmeter_main 751 786 +35
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
| -rw-r--r-- | procps/nmeter.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/procps/nmeter.c b/procps/nmeter.c index e52c868..4197174 100644 --- a/procps/nmeter.c +++ b/procps/nmeter.c @@ -985,6 +985,15 @@ int nmeter_main(int argc UNUSED_PARAM, char **argv) xgettimeofday(&G.start); G.tv = G.start; + + // Move back start of monotonic time a bit, to syncronize fractionals of %T and %t: + // nmeter -d500 '%6T %6t' + // 00:00:00.000161 12:32:07.500161 + // 00:00:00.500282 12:32:08.000282 + // 00:00:01.000286 12:32:08.500286 + if (G.delta > 0) + G.start.tv_usec -= (G.start.tv_usec % (unsigned)G.delta); + while (1) { collect_info(first); put_c(G.final_char); @@ -999,6 +1008,15 @@ int nmeter_main(int argc UNUSED_PARAM, char **argv) int rem; // can be commented out, will sacrifice sleep time precision a bit xgettimeofday(&G.tv); + + // TODO: nmeter -d10000 '%6T %6t' + // 00:00:00.770333 12:34:44.770333 + // 00:00:06.000088 12:34:50.000088 + // 00:00:16.000094 12:35:00.000094 + // 00:00:26.000275 12:35:10.000275 + // we can't syncronize interval to start close to 10 seconds for both + // %T and %t (as shown above), but what if there is only %T + // in format string? Maybe sync _it_ instead of %t in this case? if (need_seconds) rem = G.delta - ((ullong)G.tv.tv_sec*1000000 + G.tv.tv_usec) % G.deltanz; else |