Performance Testing

- Added 'performance' make target that constructs an 8,000+ task database and
  runs benchmark queries against it.

performance/.gitignore

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+*.data
+*.rc

performance/CMakeLists.txt

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+cmake_minimum_required (VERSION 2.8)
+
+add_custom_target (performance ./run_perf
+                               DEPENDS task_executable
+                               WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}/performance)
+

performance/run_perf

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+#! /bin/sh
+
+echo 'Performance: setup'
+echo '  - This step will take several minutes'
+rm ./{pending,completed,undo}.data perf.rc
+./load
+
+# Run benchmarks.
+# Note that commands are run twice - warm cache testing.
+
+echo 'Performance: benchmarks'
+
+echo '  - task next...'
+../src/task rc.debug:1 rc:perf.rc next >/dev/null 2>&1
+../src/task rc.debug:1 rc:perf.rc next 2>&1 | grep "Perf task"
+
+echo '  - task list...'
+../src/task rc.debug:1 rc:perf.rc list >/dev/null 2>&1
+../src/task rc.debug:1 rc:perf.rc list 2>&1 | grep "Perf task"
+
+echo '  - task all...'
+../src/task rc.debug:1 rc:perf.rc all >/dev/null 2>&1
+../src/task rc.debug:1 rc:perf.rc all 2>&1 | grep "Perf task"
+
+echo '  - task add...'
+../src/task rc.debug:1 rc:perf.rc add >/dev/null 2>&1
+../src/task rc.debug:1 rc:perf.rc add This is a task with an average sized description length project:P priority:H +tag1 +tag2 2>&1 | grep "Perf task"
+
+echo 'End'
+exit 0
+