Rename the 'sysbench' subdirectory to 'src'.

src/lua/select_random_points.lua

@@ -0,0 +1,64 @@
+-- This test is designed for testing MariaDB's key_cache_segments for MyISAM,
+-- and should work with other storage engines as well.
+--
+-- For details about key_cache_segments please refer to:
+-- http://kb.askmonty.org/v/segmented-key-cache
+--
+
+require("oltp_common")
+
+-- Add random_points to the list of standard OLTP options
+sysbench.option_defs.random_points =
+   {"Number of random points in the IN() clause in generated SELECTs", 10}
+
+-- Override standard prepare/cleanup OLTP functions, as this benchmark does not
+-- support multiple tables
+oltp_prepare = prepare
+oltp_cleanup = cleanup
+
+function prepare()
+   assert(sysbench.opt.tables == 1, "this benchmark does not support " ..
+             "--tables > 1")
+   oltp_prepare()
+end
+
+function cleanup()
+   assert(sysbench.opt.tables == 1, "this benchmark does not support " ..
+             "--tables > 1")
+   oltp_cleanup()
+end
+
+function thread_init()
+   drv = sysbench.sql.driver()
+   con = drv:connect()
+
+   local points = string.rep("?, ", sysbench.opt.random_points - 1) .. "?"
+
+   stmt = con:prepare(string.format([[
+        SELECT id, k, c, pad
+          FROM sbtest1
+          WHERE k IN (%s)
+        ]], points))
+
+   params = {}
+   for j = 1, sysbench.opt.random_points do
+      params[j] = stmt:bind_create(sysbench.sql.type.INT)
+   end
+
+   stmt:bind_param(unpack(params))
+
+   rlen = sysbench.opt.table_size / sysbench.opt.num_threads
+end
+
+function event(thread_id)
+   -- To prevent overlapping of our range queries we need to partition the whole
+   -- table into num_threads segments and then make each thread work with its
+   -- own segment.
+   for i = 1, sysbench.opt.random_points do
+      local rmin = rlen * thread_id
+      local rmax = rmin + rlen
+      params[i]:set(sb_rand(rmin, rmax))
+   end
+
+   stmt:execute()
+end