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Measure OSD op/subop latency

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Something is wrong: loopback RTT between OSDs is sometimes as high as 70us (should be 20us or less probably)
This commit is contained in:
Vitaliy Filippov
2020-02-28 12:26:49 +03:00
parent 2be4824a7a
commit c6334afc94
4 changed files with 71 additions and 1 deletions
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osd_receive.cpp
+16
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@@ -90,6 +90,14 @@ void osd_t::handle_read(ring_data_t *data, int peer_fd)
cl.sent_ops.erase(req_it);
cl.read_reply_id = 0;
cl.read_state = 0;
// Measure subop latency
timeval tv_end;
gettimeofday(&tv_end, NULL);
subop_stat_count[request->req.hdr.opcode]++;
subop_stat_sum[request->req.hdr.opcode] += (
(tv_end.tv_sec - request->tv_begin.tv_sec)*1000000 +
tv_end.tv_usec - request->tv_begin.tv_usec
);
request->callback(request);
}
}
@@ -182,6 +190,14 @@ void osd_t::handle_reply_hdr(osd_client_t *cl)
{
cl->read_state = 0;
cl->sent_ops.erase(req_it);
// Measure subop latency
timeval tv_end;
gettimeofday(&tv_end, NULL);
subop_stat_count[op->req.hdr.opcode]++;
subop_stat_sum[op->req.hdr.opcode] += (
(tv_end.tv_sec - op->tv_begin.tv_sec)*1000000 +
tv_end.tv_usec - op->tv_begin.tv_usec
);
op->callback(op);
}
}