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204 lines
16 KiB
204 lines
16 KiB
2 months ago
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create
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definer = `mysql.sys`@localhost procedure sys.ps_statement_avg_latency_histogram() comment '
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Description
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-----------
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Outputs a textual histogram graph of the average latency values
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across all normalized queries tracked within the Performance Schema
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events_statements_summary_by_digest table.
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Can be used to show a very high level picture of what kind of
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latency distribution statements running within this instance have.
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Parameters
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-----------
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None.
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Example
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-----------
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mysql> CALL sys.ps_statement_avg_latency_histogram()\G
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*************************** 1. row ***************************
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Performance Schema Statement Digest Average Latency Histogram:
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. = 1 unit
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* = 2 units
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# = 3 units
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(0 - 38ms) 240 | ################################################################################
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(38 - 77ms) 38 | ......................................
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(77 - 115ms) 3 | ...
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(115 - 154ms) 62 | *******************************
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(154 - 192ms) 3 | ...
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(192 - 231ms) 0 |
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(231 - 269ms) 0 |
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(269 - 307ms) 0 |
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(307 - 346ms) 0 |
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(346 - 384ms) 1 | .
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(384 - 423ms) 1 | .
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(423 - 461ms) 0 |
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(461 - 499ms) 0 |
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(499 - 538ms) 0 |
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(538 - 576ms) 0 |
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(576 - 615ms) 1 | .
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Total Statements: 350; Buckets: 16; Bucket Size: 38 ms;
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' sql security invoker reads sql data
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BEGIN
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SELECT CONCAT('\n',
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'\n . = 1 unit',
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'\n * = 2 units',
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'\n # = 3 units\n',
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@label := CONCAT(@label_inner := CONCAT('\n(0 - ',
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ROUND((@bucket_size := (SELECT ROUND((MAX(avg_us) - MIN(avg_us)) / (@buckets := 16)) AS size
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FROM sys.x$ps_digest_avg_latency_distribution)) / (@unit_div := 1000)),
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(@unit := 'ms'), ')'),
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REPEAT(' ', (@max_label_size := ((1 + LENGTH(ROUND((@bucket_size * 15) / @unit_div)) + 3 + LENGTH(ROUND(@bucket_size * 16) / @unit_div)) + 1)) - LENGTH(@label_inner)),
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@count_in_bucket := IFNULL((SELECT SUM(cnt)
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FROM sys.x$ps_digest_avg_latency_distribution AS b1
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WHERE b1.avg_us <= @bucket_size), 0)),
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REPEAT(' ', (@max_label_len := (@max_label_size + LENGTH((@total_queries := (SELECT SUM(cnt) FROM sys.x$ps_digest_avg_latency_distribution)))) + 1) - LENGTH(@label)), '| ',
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IFNULL(REPEAT(IF(@count_in_bucket < (@one_unit := 40), '.', IF(@count_in_bucket < (@two_unit := 80), '*', '#')),
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IF(@count_in_bucket < @one_unit, @count_in_bucket,
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IF(@count_in_bucket < @two_unit, @count_in_bucket / 2, @count_in_bucket / 3))), ''),
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@label := CONCAT(@label_inner := CONCAT('\n(', ROUND(@bucket_size / @unit_div), ' - ', ROUND((@bucket_size * 2) / @unit_div), @unit, ')'),
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REPEAT(' ', @max_label_size - LENGTH(@label_inner)),
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@count_in_bucket := IFNULL((SELECT SUM(cnt)
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FROM sys.x$ps_digest_avg_latency_distribution AS b1
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WHERE b1.avg_us > @bucket_size AND b1.avg_us <= @bucket_size * 2), 0)),
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REPEAT(' ', @max_label_len - LENGTH(@label)), '| ',
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IFNULL(REPEAT(IF(@count_in_bucket < @one_unit, '.', IF(@count_in_bucket < @two_unit, '*', '#')),
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IF(@count_in_bucket < @one_unit, @count_in_bucket,
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IF(@count_in_bucket < @two_unit, @count_in_bucket / 2, @count_in_bucket / 3))), ''),
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@label := CONCAT(@label_inner := CONCAT('\n(', ROUND((@bucket_size * 2) / @unit_div), ' - ', ROUND((@bucket_size * 3) / @unit_div), @unit, ')'),
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REPEAT(' ', @max_label_size - LENGTH(@label_inner)),
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@count_in_bucket := IFNULL((SELECT SUM(cnt)
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FROM sys.x$ps_digest_avg_latency_distribution AS b1
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WHERE b1.avg_us > @bucket_size * 2 AND b1.avg_us <= @bucket_size * 3), 0)),
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REPEAT(' ', @max_label_len - LENGTH(@label)), '| ',
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IFNULL(REPEAT(IF(@count_in_bucket < @one_unit, '.', IF(@count_in_bucket < @two_unit, '*', '#')),
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IF(@count_in_bucket < @one_unit, @count_in_bucket,
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IF(@count_in_bucket < @two_unit, @count_in_bucket / 2, @count_in_bucket / 3))), ''),
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@label := CONCAT(@label_inner := CONCAT('\n(', ROUND((@bucket_size * 3) / @unit_div), ' - ', ROUND((@bucket_size * 4) / @unit_div), @unit, ')'),
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REPEAT(' ', @max_label_size - LENGTH(@label_inner)),
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@count_in_bucket := IFNULL((SELECT SUM(cnt)
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FROM sys.x$ps_digest_avg_latency_distribution AS b1
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WHERE b1.avg_us > @bucket_size * 3 AND b1.avg_us <= @bucket_size * 4), 0)),
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REPEAT(' ', @max_label_len - LENGTH(@label)), '| ',
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IFNULL(REPEAT(IF(@count_in_bucket < @one_unit, '.', IF(@count_in_bucket < @two_unit, '*', '#')),
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IF(@count_in_bucket < @one_unit, @count_in_bucket,
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IF(@count_in_bucket < @two_unit, @count_in_bucket / 2, @count_in_bucket / 3))), ''),
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@label := CONCAT(@label_inner := CONCAT('\n(', ROUND((@bucket_size * 4) / @unit_div), ' - ', ROUND((@bucket_size * 5) / @unit_div), @unit, ')'),
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REPEAT(' ', @max_label_size - LENGTH(@label_inner)),
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@count_in_bucket := IFNULL((SELECT SUM(cnt)
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FROM sys.x$ps_digest_avg_latency_distribution AS b1
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WHERE b1.avg_us > @bucket_size * 4 AND b1.avg_us <= @bucket_size * 5), 0)),
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REPEAT(' ', @max_label_len - LENGTH(@label)), '| ',
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IFNULL(REPEAT(IF(@count_in_bucket < @one_unit, '.', IF(@count_in_bucket < @two_unit, '*', '#')),
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IF(@count_in_bucket < @one_unit, @count_in_bucket,
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IF(@count_in_bucket < @two_unit, @count_in_bucket / 2, @count_in_bucket / 3))), ''),
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@label := CONCAT(@label_inner := CONCAT('\n(', ROUND((@bucket_size * 5) / @unit_div), ' - ', ROUND((@bucket_size * 6) / @unit_div), @unit, ')'),
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REPEAT(' ', @max_label_size - LENGTH(@label_inner)),
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@count_in_bucket := IFNULL((SELECT SUM(cnt)
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FROM sys.x$ps_digest_avg_latency_distribution AS b1
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WHERE b1.avg_us > @bucket_size * 5 AND b1.avg_us <= @bucket_size * 6), 0)),
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REPEAT(' ', @max_label_len - LENGTH(@label)), '| ',
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IFNULL(REPEAT(IF(@count_in_bucket < @one_unit, '.', IF(@count_in_bucket < @two_unit, '*', '#')),
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IF(@count_in_bucket < @one_unit, @count_in_bucket,
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IF(@count_in_bucket < @two_unit, @count_in_bucket / 2, @count_in_bucket / 3))), ''),
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@label := CONCAT(@label_inner := CONCAT('\n(', ROUND((@bucket_size * 6) / @unit_div), ' - ', ROUND((@bucket_size * 7) / @unit_div), @unit, ')'),
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REPEAT(' ', @max_label_size - LENGTH(@label_inner)),
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@count_in_bucket := IFNULL((SELECT SUM(cnt)
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FROM sys.x$ps_digest_avg_latency_distribution AS b1
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WHERE b1.avg_us > @bucket_size * 6 AND b1.avg_us <= @bucket_size * 7), 0)),
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REPEAT(' ', @max_label_len - LENGTH(@label)), '| ',
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IFNULL(REPEAT(IF(@count_in_bucket < @one_unit, '.', IF(@count_in_bucket < @two_unit, '*', '#')),
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IF(@count_in_bucket < @one_unit, @count_in_bucket,
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IF(@count_in_bucket < @two_unit, @count_in_bucket / 2, @count_in_bucket / 3))), ''),
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@label := CONCAT(@label_inner := CONCAT('\n(', ROUND((@bucket_size * 7) / @unit_div), ' - ', ROUND((@bucket_size * 8) / @unit_div), @unit, ')'),
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REPEAT(' ', @max_label_size - LENGTH(@label_inner)),
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@count_in_bucket := IFNULL((SELECT SUM(cnt)
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FROM sys.x$ps_digest_avg_latency_distribution AS b1
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WHERE b1.avg_us > @bucket_size * 7 AND b1.avg_us <= @bucket_size * 8), 0)),
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REPEAT(' ', @max_label_len - LENGTH(@label)), '| ',
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IFNULL(REPEAT(IF(@count_in_bucket < @one_unit, '.', IF(@count_in_bucket < @two_unit, '*', '#')),
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IF(@count_in_bucket < @one_unit, @count_in_bucket,
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IF(@count_in_bucket < @two_unit, @count_in_bucket / 2, @count_in_bucket / 3))), ''),
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@label := CONCAT(@label_inner := CONCAT('\n(', ROUND((@bucket_size * 8) / @unit_div), ' - ', ROUND((@bucket_size * 9) / @unit_div), @unit, ')'),
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REPEAT(' ', @max_label_size - LENGTH(@label_inner)),
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@count_in_bucket := IFNULL((SELECT SUM(cnt)
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FROM sys.x$ps_digest_avg_latency_distribution AS b1
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WHERE b1.avg_us > @bucket_size * 8 AND b1.avg_us <= @bucket_size * 9), 0)),
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REPEAT(' ', @max_label_len - LENGTH(@label)), '| ',
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IFNULL(REPEAT(IF(@count_in_bucket < @one_unit, '.', IF(@count_in_bucket < @two_unit, '*', '#')),
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IF(@count_in_bucket < @one_unit, @count_in_bucket,
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IF(@count_in_bucket < @two_unit, @count_in_bucket / 2, @count_in_bucket / 3))), ''),
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@label := CONCAT(@label_inner := CONCAT('\n(', ROUND((@bucket_size * 9) / @unit_div), ' - ', ROUND((@bucket_size * 10) / @unit_div), @unit, ')'),
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REPEAT(' ', @max_label_size - LENGTH(@label_inner)),
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@count_in_bucket := IFNULL((SELECT SUM(cnt)
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FROM sys.x$ps_digest_avg_latency_distribution AS b1
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WHERE b1.avg_us > @bucket_size * 9 AND b1.avg_us <= @bucket_size * 10), 0)),
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REPEAT(' ', @max_label_len - LENGTH(@label)), '| ',
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IFNULL(REPEAT(IF(@count_in_bucket < @one_unit, '.', IF(@count_in_bucket < @two_unit, '*', '#')),
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IF(@count_in_bucket < @one_unit, @count_in_bucket,
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IF(@count_in_bucket < @two_unit, @count_in_bucket / 2, @count_in_bucket / 3))), ''),
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@label := CONCAT(@label_inner := CONCAT('\n(', ROUND((@bucket_size * 10) / @unit_div), ' - ', ROUND((@bucket_size * 11) / @unit_div), @unit, ')'),
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REPEAT(' ', @max_label_size - LENGTH(@label_inner)),
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@count_in_bucket := IFNULL((SELECT SUM(cnt)
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FROM sys.x$ps_digest_avg_latency_distribution AS b1
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WHERE b1.avg_us > @bucket_size * 10 AND b1.avg_us <= @bucket_size * 11), 0)),
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REPEAT(' ', @max_label_len - LENGTH(@label)), '| ',
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IFNULL(REPEAT(IF(@count_in_bucket < @one_unit, '.', IF(@count_in_bucket < @two_unit, '*', '#')),
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IF(@count_in_bucket < @one_unit, @count_in_bucket,
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IF(@count_in_bucket < @two_unit, @count_in_bucket / 2, @count_in_bucket / 3))), ''),
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@label := CONCAT(@label_inner := CONCAT('\n(', ROUND((@bucket_size * 11) / @unit_div), ' - ', ROUND((@bucket_size * 12) / @unit_div), @unit, ')'),
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REPEAT(' ', @max_label_size - LENGTH(@label_inner)),
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@count_in_bucket := IFNULL((SELECT SUM(cnt)
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FROM sys.x$ps_digest_avg_latency_distribution AS b1
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WHERE b1.avg_us > @bucket_size * 11 AND b1.avg_us <= @bucket_size * 12), 0)),
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REPEAT(' ', @max_label_len - LENGTH(@label)), '| ',
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IFNULL(REPEAT(IF(@count_in_bucket < @one_unit, '.', IF(@count_in_bucket < @two_unit, '*', '#')),
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IF(@count_in_bucket < @one_unit, @count_in_bucket,
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IF(@count_in_bucket < @two_unit, @count_in_bucket / 2, @count_in_bucket / 3))), ''),
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@label := CONCAT(@label_inner := CONCAT('\n(', ROUND((@bucket_size * 12) / @unit_div), ' - ', ROUND((@bucket_size * 13) / @unit_div), @unit, ')'),
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REPEAT(' ', @max_label_size - LENGTH(@label_inner)),
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@count_in_bucket := IFNULL((SELECT SUM(cnt)
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FROM sys.x$ps_digest_avg_latency_distribution AS b1
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WHERE b1.avg_us > @bucket_size * 12 AND b1.avg_us <= @bucket_size * 13), 0)),
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REPEAT(' ', @max_label_len - LENGTH(@label)), '| ',
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IFNULL(REPEAT(IF(@count_in_bucket < @one_unit, '.', IF(@count_in_bucket < @two_unit, '*', '#')),
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IF(@count_in_bucket < @one_unit, @count_in_bucket,
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IF(@count_in_bucket < @two_unit, @count_in_bucket / 2, @count_in_bucket / 3))), ''),
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@label := CONCAT(@label_inner := CONCAT('\n(', ROUND((@bucket_size * 13) / @unit_div), ' - ', ROUND((@bucket_size * 14) / @unit_div), @unit, ')'),
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REPEAT(' ', @max_label_size - LENGTH(@label_inner)),
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@count_in_bucket := IFNULL((SELECT SUM(cnt)
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FROM sys.x$ps_digest_avg_latency_distribution AS b1
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WHERE b1.avg_us > @bucket_size * 13 AND b1.avg_us <= @bucket_size * 14), 0)),
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REPEAT(' ', @max_label_len - LENGTH(@label)), '| ',
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IFNULL(REPEAT(IF(@count_in_bucket < @one_unit, '.', IF(@count_in_bucket < @two_unit, '*', '#')),
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IF(@count_in_bucket < @one_unit, @count_in_bucket,
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IF(@count_in_bucket < @two_unit, @count_in_bucket / 2, @count_in_bucket / 3))), ''),
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@label := CONCAT(@label_inner := CONCAT('\n(', ROUND((@bucket_size * 14) / @unit_div), ' - ', ROUND((@bucket_size * 15) / @unit_div), @unit, ')'),
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REPEAT(' ', @max_label_size - LENGTH(@label_inner)),
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@count_in_bucket := IFNULL((SELECT SUM(cnt)
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FROM sys.x$ps_digest_avg_latency_distribution AS b1
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WHERE b1.avg_us > @bucket_size * 14 AND b1.avg_us <= @bucket_size * 15), 0)),
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REPEAT(' ', @max_label_len - LENGTH(@label)), '| ',
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IFNULL(REPEAT(IF(@count_in_bucket < @one_unit, '.', IF(@count_in_bucket < @two_unit, '*', '#')),
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IF(@count_in_bucket < @one_unit, @count_in_bucket,
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IF(@count_in_bucket < @two_unit, @count_in_bucket / 2, @count_in_bucket / 3))), ''),
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@label := CONCAT(@label_inner := CONCAT('\n(', ROUND((@bucket_size * 15) / @unit_div), ' - ', ROUND((@bucket_size * 16) / @unit_div), @unit, ')'),
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REPEAT(' ', @max_label_size - LENGTH(@label_inner)),
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@count_in_bucket := IFNULL((SELECT SUM(cnt)
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FROM sys.x$ps_digest_avg_latency_distribution AS b1
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WHERE b1.avg_us > @bucket_size * 15 AND b1.avg_us <= @bucket_size * 16), 0)),
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REPEAT(' ', @max_label_len - LENGTH(@label)), '| ',
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IFNULL(REPEAT(IF(@count_in_bucket < @one_unit, '.', IF(@count_in_bucket < @two_unit, '*', '#')),
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IF(@count_in_bucket < @one_unit, @count_in_bucket,
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IF(@count_in_bucket < @two_unit, @count_in_bucket / 2, @count_in_bucket / 3))), ''),
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'\n\n Total Statements: ', @total_queries, '; Buckets: ', @buckets , '; Bucket Size: ', ROUND(@bucket_size / @unit_div) , ' ', @unit, ';\n'
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) AS `Performance Schema Statement Digest Average Latency Histogram`;
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END;
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