sqlite/test/json

The files in this subdirectory are used to help measure the performance of the SQLite JSON parser.

1.0 Prerequisites

1. Valgrind

2. Fossil

2.0 Setup

1. Run: "tclsh json-generator.tcl | sqlite3 json100mb.db" to create the 100 megabyte test database. Do this so that the "json100mb.db" file lands in the directory from which you will run tests, not in the test/json subdirectory of the source tree.

2. Build the baseline sqlite3.c file. ("make sqlite3.c")

3. Run "sh json-speed-check-1.sh trunk". This creates the baseline profile in "jout-trunk.txt".

3.0 Testing

1. Build the sqlite3.c to be tested.

2. Run "sh json-speed-check-1.sh x1". The profile output will appear in jout-x1.txt. Substitute any label you want in place of "x1".

3. Run the query "SELECT sum(json_valid(x)) FROM data1;" on the json100mb.db database file. Measure the runtime. Divide 100 by the real elapse time of this test to get an estimate for number of MB/s that the JSON parser is able to process.