62 lines
1.4 KiB
Lua
62 lines
1.4 KiB
Lua
-- This test is designed for testing MariaDB's key_cache_segments for MyISAM,
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-- and should work with other storage engines as well.
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--
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-- For details about key_cache_segments please refer to:
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-- http://kb.askmonty.org/v/segmented-key-cache
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--
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-- Override oltp_tables_count, this test only supports a single table
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oltp_tables_count = 1
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pathtest = string.match(test, "(.*/)")
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if pathtest then
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dofile(pathtest .. "common.lua")
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else
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require("common")
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end
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function thread_init()
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set_vars_points()
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points = ""
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for i = 1,random_points do
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points = points .. "?, "
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end
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-- Get rid of last comma and space.
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points = string.sub(points, 1, string.len(points) - 2)
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stmt = db_prepare([[
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SELECT id, k, c, pad
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FROM sbtest1
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WHERE k IN (]] .. points .. [[)
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]])
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params = {}
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for j = 1,random_points do
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params[j] = 1
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end
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db_bind_param(stmt, params)
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end
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function event()
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local rs
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-- To prevent overlapping of our range queries we need to partition the whole table
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-- into num_threads segments and then make each thread work with its own segment.
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for i = 1,random_points do
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params[i] = sb_rand(oltp_table_size / num_threads * thread_id, oltp_table_size / num_threads * (thread_id + 1))
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end
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rs = db_execute(stmt)
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db_store_results(rs)
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db_free_results(rs)
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end
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function set_vars_points()
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set_vars()
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random_points = random_points or 10
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end
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