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-rw-r--r--src/bench/perf.cpp53
1 files changed, 0 insertions, 53 deletions
diff --git a/src/bench/perf.cpp b/src/bench/perf.cpp
deleted file mode 100644
index f92d08c56e..0000000000
--- a/src/bench/perf.cpp
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright (c) 2016-2017 The Bitcoin Core developers
-// Distributed under the MIT software license, see the accompanying
-// file COPYING or http://www.opensource.org/licenses/mit-license.php.
-
-#include <bench/perf.h>
-
-#if defined(__i386__) || defined(__x86_64__)
-
-/* These architectures support querying the cycle counter
- * from user space, no need for any syscall overhead.
- */
-void perf_init(void) { }
-void perf_fini(void) { }
-
-#elif defined(__linux__)
-
-#include <unistd.h>
-#include <sys/syscall.h>
-#include <linux/perf_event.h>
-
-static int fd = -1;
-static struct perf_event_attr attr;
-
-void perf_init(void)
-{
- attr.type = PERF_TYPE_HARDWARE;
- attr.config = PERF_COUNT_HW_CPU_CYCLES;
- fd = syscall(__NR_perf_event_open, &attr, 0, -1, -1, 0);
-}
-
-void perf_fini(void)
-{
- if (fd != -1) {
- close(fd);
- }
-}
-
-uint64_t perf_cpucycles(void)
-{
- uint64_t result = 0;
- if (fd == -1 || read(fd, &result, sizeof(result)) < (ssize_t)sizeof(result)) {
- return 0;
- }
- return result;
-}
-
-#else /* Unhandled platform */
-
-void perf_init(void) { }
-void perf_fini(void) { }
-uint64_t perf_cpucycles(void) { return 0; }
-
-#endif