Displaying 5 results from an estimated 5 matches for "pread_st".
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pread_cb
2019 Nov 30
0
[PATCH nbdkit v2 2/3] filters: stats: Measure time per operation
...st->bytes,
st->bytes / GiB,
- calc_rate (st->bytes, usecs));
+ calc_rate (st->bytes, st->usecs));
}
static inline void
print_stats (int64_t usecs)
{
- fprintf (fp, "elapsed time: %.3f s\n", usecs / USEC);
-
- print_stat (&pread_st, usecs);
- print_stat (&pwrite_st, usecs);
- print_stat (&trim_st, usecs);
- print_stat (&zero_st, usecs);
- print_stat (&extents_st, usecs);
- print_stat (&cache_st, usecs);
+ const stat total_st = {
+ .name = "total",
+ .ops = pread_st.ops
+...
2019 Nov 30
4
[PATCH nbdkit v2 0/3] filters: stats: More useful, more friendly
- Use more friendly output with GiB and MiB/s
- Measure time per operation, providing finer grain stats
- Add total stats for understanding system throughput
- Add missing stats for flush
I hope that these changes will help to understand and improve virt-v2v
performance.
Changes since v1:
- Keep bytes values
- Increase precision to 0.001 GiB and 0.001 MiB/s
- Add total stats
- Show time before
2019 Dec 04
0
[PATCH nbdkit v3 5/5] filters: stats: Show total stats
...ad1 PARAMETERS
diff --git a/filters/stats/stats.c b/filters/stats/stats.c
index fbd6b87..0759ceb 100644
--- a/filters/stats/stats.c
+++ b/filters/stats/stats.c
@@ -125,10 +125,27 @@ print_stat (const stat *st, int64_t usecs)
}
}
+static void
+print_totals (uint64_t usecs)
+{
+ uint64_t ops = pread_st.ops + pwrite_st.ops + trim_st.ops + zero_st.ops +
+ extents_st.ops + flush_st.ops;
+ uint64_t bytes = pread_st.bytes + pwrite_st.bytes + trim_st.bytes +
+ zero_st.bytes;
+ char *size = humansize (bytes);
+ char *rate = humanrate (bytes, usecs);
+
+ fprintf (fp, "total: %" PRIu64...
2019 Dec 04
6
[PATCH nbdkit v3 0/5] filters: stats: More useful, more friendly
This is the third attempt to make the stats filter better. This time I kept the
changes minimal to make it eaier to make progress.
I tried the idea of showing global stats in separate "total" section, but it
became messy and hard to implemnt, so I tried the simpler solution of showing
both operation rate and total rate in the operation line.
Nir Soffer (5):
filters: stats: Add
2019 Nov 30
0
[PATCH nbdkit v2 1/3] filters: stats: Add size in GiB, show rate in MiB/s
...s,
+ st->bytes / GiB,
+ calc_rate (st->bytes, usecs));
}
static inline void
print_stats (int64_t usecs)
{
- fprintf (fp, "elapsed time: %g s\n", usecs / 1000000.);
+ fprintf (fp, "elapsed time: %.3f s\n", usecs / USEC);
+
print_stat (&pread_st, usecs);
print_stat (&pwrite_st, usecs);
print_stat (&trim_st, usecs);
print_stat (&zero_st, usecs);
print_stat (&extents_st, usecs);
print_stat (&cache_st, usecs);
+
fflush (fp);
}
--
2.21.0