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+/* -*- mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*- */
+// vim: ft=cpp:expandtab:ts=8:sw=4:softtabstop=4:
+#ident "$Id$"
+/*======
+This file is part of PerconaFT.
+
+
+Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved.
+
+ PerconaFT is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License, version 2,
+ as published by the Free Software Foundation.
+
+ PerconaFT is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with PerconaFT. If not, see <http://www.gnu.org/licenses/>.
+
+----------------------------------------
+
+ PerconaFT is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Affero General Public License, version 3,
+ as published by the Free Software Foundation.
+
+ PerconaFT is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU Affero General Public License for more details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with PerconaFT. If not, see <http://www.gnu.org/licenses/>.
+======= */
+
+#ident "Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved."
+
+#include "test.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <toku_pthread.h>
+#include <unistd.h>
+#include <memory.h>
+#include <sys/stat.h>
+#include <db.h>
+
+#include "threaded_stress_test_helpers.h"
+
+//
+// This test is a form of stress that does operations on a single dictionary:
+// We create a dictionary bigger than the cachetable (around 4x greater).
+// Then, we spawn a bunch of pthreads that do the following:
+// - scan dictionary forward with bulk fetch
+// - scan dictionary forward slowly
+// - scan dictionary backward with bulk fetch
+// - scan dictionary backward slowly
+// - Grow the dictionary with insertions
+// - do random point queries into the dictionary
+// With the small cachetable, this should produce quite a bit of churn in reading in and evicting nodes.
+// If the test runs to completion without crashing, we consider it a success. It also tests that snapshots
+// work correctly by verifying that table scans sum their vals to 0.
+//
+// This does NOT test:
+// - splits and merges
+// - multiple DBs
+//
+// Variables that are interesting to tweak and run:
+// - small cachetable
+// - number of elements
+//
+
+static void
+stress_table(DB_ENV *env, DB **dbp, struct cli_args *cli_args) {
+ //
+ // the threads that we want:
+ // - one thread constantly updating random values
+ // - one thread doing table scan with bulk fetch
+ // - one thread doing table scan without bulk fetch
+ // - one thread doing random point queries
+ //
+
+ if (verbose) printf("starting creation of pthreads\n");
+ const int num_threads = 4 + cli_args->num_update_threads + cli_args->num_ptquery_threads;
+ struct arg myargs[num_threads];
+ for (int i = 0; i < num_threads; i++) {
+ arg_init(&myargs[i], dbp, env, cli_args);
+ }
+ struct scan_op_extra soe[4];
+
+ // make the forward fast scanner
+ soe[0].fast = true;
+ soe[0].fwd = true;
+ soe[0].prefetch = false;
+ myargs[0].operation_extra = &soe[0];
+ myargs[0].operation = scan_op;
+
+ // make the forward slow scanner
+ soe[1].fast = false;
+ soe[1].fwd = true;
+ soe[1].prefetch = false;
+ myargs[1].operation_extra = &soe[1];
+ myargs[1].operation = scan_op;
+
+ // make the backward fast scanner
+ soe[2].fast = true;
+ soe[2].fwd = false;
+ soe[2].prefetch = false;
+ myargs[2].operation_extra = &soe[2];
+ myargs[2].operation = scan_op;
+
+ // make the backward slow scanner
+ soe[3].fast = false;
+ soe[3].fwd = false;
+ soe[3].prefetch = false;
+ myargs[3].operation_extra = &soe[3];
+ myargs[3].operation = scan_op;
+
+ struct update_op_args uoe = get_update_op_args(cli_args, NULL);
+ // make the guy that updates the db
+ for (int i = 4; i < 4 + cli_args->num_update_threads; ++i) {
+ myargs[i].operation_extra = &uoe;
+ myargs[i].operation = update_op;
+ myargs[i].do_prepare = true;
+ }
+
+ // make the guy that does point queries
+ for (int i = 4 + cli_args->num_update_threads; i < num_threads; i++) {
+ myargs[i].operation = ptquery_op;
+ myargs[i].do_prepare = true;
+ }
+
+ int num_seconds = random() % cli_args->num_seconds;
+ run_workers(myargs, num_threads, num_seconds, true, cli_args);
+}
+
+int
+test_main(int argc, char *const argv[]) {
+ struct cli_args args = get_default_args();
+ args.env_args.checkpointing_period = 1;
+ parse_stress_test_args(argc, argv, &args);
+ if (args.do_test_and_crash) {
+ stress_test_main(&args);
+ }
+ if (args.do_recover) {
+ stress_recover(&args);
+ }
+ return 0;
+}