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Andres Freund ac8d53dae5 Track IO times in pg_stat_io ... a9c70b46db and 8aaa04b32S added counting of IO operations to a new view, pg_stat_io. Now, add IO timing for reads, writes, extends, and fsyncs to pg_stat_io as well. This combines the tracking for pgBufferUsage with the tracking for pg_stat_io into a new function pgstat_count_io_op_time(). This should make it a bit easier to avoid the somewhat costly instr_time conversion done for pgBufferUsage. Author: Melanie Plageman <melanieplageman@gmail.com> Reviewed-by: Andres Freund <andres@anarazel.de> Reviewed-by: Bertrand Drouvot <bertranddrouvot.pg@gmail.com> Discussion: https://postgr.es/m/flat/CAAKRu_ay5iKmnbXZ3DsauViF3eMxu4m1oNnJXqV_HyqYeg55Ww%40mail.gmail.com		3 years ago
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src	Track IO times in pg_stat_io	3 years ago
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