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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:45:59 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:45:59 +0000
commit19fcec84d8d7d21e796c7624e521b60d28ee21ed (patch)
tree42d26aa27d1e3f7c0b8bd3fd14e7d7082f5008dc /src/test/perf_helper.cc
parentInitial commit. (diff)
downloadceph-19fcec84d8d7d21e796c7624e521b60d28ee21ed.tar.xz
ceph-19fcec84d8d7d21e796c7624e521b60d28ee21ed.zip
Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/perf_helper.cc')
-rw-r--r--src/test/perf_helper.cc52
1 files changed, 52 insertions, 0 deletions
diff --git a/src/test/perf_helper.cc b/src/test/perf_helper.cc
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+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/* Copyright (c) 2011 Facebook
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR(S) DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "include/buffer.h"
+#include "common/error_code.h"
+
+using namespace ceph;
+
+namespace PerfHelper {
+
+/// Flush the CPU data cache by reading and writing 100MB of new data.
+void flush_cache()
+{
+ int hundredMegs = 100 * 1024 * 1024;
+ volatile char* block = new char[hundredMegs];
+ for (int i = 0; i < hundredMegs; i++)
+ block[i] = 1;
+ delete[] block;
+}
+
+/// Used in functionCall().
+uint64_t plus_one(uint64_t x)
+{
+ return x + 1;
+}
+
+/// Used in throwIntNL.
+void throw_int()
+{
+ throw 0;
+}
+
+/// Used in throwExceptionNL.
+void throw_end_of_buffer()
+{
+ throw buffer::end_of_buffer();
+}
+}