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Commitbfd4567

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pgbench: Avoid unnecessary measurement of connection delays.
Commit547f04e changed pgbench so that it used the measurement resultof connection delays in its benchmark report only when -C/--connect optionis specified. But previously those delays were unnecessarily measuredeven when that option is not specified. Which was a waste of cycles.This commit improves pgbench so that it avoids such unnecessary measurement.Back-patch to v14 where commit547f04e first appeared.Author: Yugo NagataReviewed-by: Fabien COELHO, Asif Rehman, Fujii MasaoDiscussion:https://postgr.es/m/20210614151155.a393bc7d8fed183e38c9f52a@sraoss.co.jp
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‎src/bin/pgbench/pgbench.c

Lines changed: 1 addition & 8 deletions
Original file line numberDiff line numberDiff line change
@@ -6603,6 +6603,7 @@ threadRun(void *arg)
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thread_start=pg_time_now();
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thread->started_time=thread_start;
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thread->conn_duration=0;
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last_report=thread_start;
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next_report=last_report+ (int64)1000000*progress;
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@@ -6626,14 +6627,6 @@ threadRun(void *arg)
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gotodone;
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}
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}
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/* compute connection delay */
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thread->conn_duration=pg_time_now()-thread->started_time;
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}
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else
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{
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/* no connection delay to record */
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thread->conn_duration=0;
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}
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/* GO */

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