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Adding TimedRWMutex* to shared mutexes benchmark
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Summary: `fibers::TimedRWMutex` is fiber-friendly but less efficient; adding it to the benchmark to get a better idea of its performance.

Reviewed By: owwlo

Differential Revision: D51589948

fbshipit-source-id: a4386658837794d805d8c6a3750273f5cafc99da
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@mshatalov @facebook-github-bot
mshatalov authored and facebook-github-bot committed Nov 29, 2023
1 parent 775967a commit 94e741c
Showing 1 changed file with 110 additions and 0 deletions.
110 changes: 110 additions & 0 deletions folly/test/SharedMutexTest.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,8 @@

#include <folly/Benchmark.h>
#include <folly/MPMCQueue.h>
#include <folly/fibers/Baton.h>
#include <folly/fibers/TimedMutex.h>
#include <folly/portability/GFlags.h>
#include <folly/portability/GTest.h>
#include <folly/synchronization/RWSpinLock.h>
Expand Down Expand Up @@ -638,6 +640,22 @@ static void pthrd_rwlock_reads(
numOps, numThreads, useSeparateLocks);
}

static void timed_wr_pri_reads(
uint32_t numOps, size_t numThreads, bool useSeparateLocks) {
runContendedReaders<
atomic,
fibers::TimedRWMutexWritePriority<fibers::Baton>,
Locker>(numOps, numThreads, useSeparateLocks);
}

static void timed_rd_pri_reads(
uint32_t numOps, size_t numThreads, bool useSeparateLocks) {
runContendedReaders<
atomic,
fibers::TimedRWMutexReadPriority<fibers::Baton>,
Locker>(numOps, numThreads, useSeparateLocks);
}

template <template <typename> class Atom, typename Lock, typename Locker>
static void runMixed(
size_t numOps,
Expand Down Expand Up @@ -774,6 +792,24 @@ static void pthrd_mutex_(
numOps, numThreads, writeFraction, useSeparateLocks);
}

static void timed_wr_pri(
size_t numOps,
size_t numThreads,
double writeFraction,
bool useSeparateLocks) {
runMixed<atomic, fibers::TimedRWMutexWritePriority<fibers::Baton>, Locker>(
numOps, numThreads, writeFraction, useSeparateLocks);
}

static void timed_rd_pri(
size_t numOps,
size_t numThreads,
double writeFraction,
bool useSeparateLocks) {
runMixed<atomic, fibers::TimedRWMutexReadPriority<fibers::Baton>, Locker>(
numOps, numThreads, writeFraction, useSeparateLocks);
}

template <typename Lock, template <typename> class Atom>
static void runAllAndValidate(size_t numOps, size_t numThreads) {
Lock globalLock;
Expand Down Expand Up @@ -1409,6 +1445,16 @@ static void pthrd_rwlock_ping_pong(size_t n, size_t scale, size_t burnCount) {
runPingPong<PosixRWLock>(n / scale, burnCount);
}

static void timed_wr_pri_ping_pong(size_t n, size_t scale, size_t burnCount) {
runPingPong<fibers::TimedRWMutexWritePriority<fibers::Baton>>(
n / scale, burnCount);
}

static void timed_rd_pri_ping_pong(size_t n, size_t scale, size_t burnCount) {
runPingPong<fibers::TimedRWMutexReadPriority<fibers::Baton>>(
n / scale, burnCount);
}

TEST(SharedMutex, deterministic_ping_pong_write_prio) {
// This test fails in TSAN because some mutexes are lock_shared() in one
// thread and unlock_shared() in a different thread.
Expand Down Expand Up @@ -1630,6 +1676,8 @@ BENCH_REL(shmtx_r_bare_reads, 1thread, 1, false)
BENCH_REL(folly_ticket_reads, 1thread, 1, false)
BENCH_REL(boost_shared_reads, 1thread, 1, false)
BENCH_REL(pthrd_rwlock_reads, 1thread, 1, false)
BENCH_REL(timed_wr_pri_reads, 1thread, 1, false)
BENCH_REL(timed_rd_pri_reads, 1thread, 1, false)
BENCHMARK_DRAW_LINE();
BENCH_BASE(folly_rwspin_reads, 2thread, 2, false)
BENCH_REL(shmtx_wr_pri_reads, 2thread, 2, false)
Expand All @@ -1639,6 +1687,8 @@ BENCH_REL(shmtx_r_bare_reads, 2thread, 2, false)
BENCH_REL(folly_ticket_reads, 2thread, 2, false)
BENCH_REL(boost_shared_reads, 2thread, 2, false)
BENCH_REL(pthrd_rwlock_reads, 2thread, 2, false)
BENCH_REL(timed_wr_pri_reads, 2thread, 2, false)
BENCH_REL(timed_rd_pri_reads, 2thread, 2, false)
BENCHMARK_DRAW_LINE();
BENCH_BASE(folly_rwspin_reads, 4thread, 4, false)
BENCH_REL(shmtx_wr_pri_reads, 4thread, 4, false)
Expand All @@ -1648,6 +1698,8 @@ BENCH_REL(shmtx_r_bare_reads, 4thread, 4, false)
BENCH_REL(folly_ticket_reads, 4thread, 4, false)
BENCH_REL(boost_shared_reads, 4thread, 4, false)
BENCH_REL(pthrd_rwlock_reads, 4thread, 4, false)
BENCH_REL(timed_wr_pri_reads, 4thread, 4, false)
BENCH_REL(timed_rd_pri_reads, 4thread, 4, false)
BENCHMARK_DRAW_LINE();
BENCH_BASE(folly_rwspin_reads, 8thread, 8, false)
BENCH_REL(shmtx_wr_pri_reads, 8thread, 8, false)
Expand All @@ -1657,6 +1709,8 @@ BENCH_REL(shmtx_r_bare_reads, 8thread, 8, false)
BENCH_REL(folly_ticket_reads, 8thread, 8, false)
BENCH_REL(boost_shared_reads, 8thread, 8, false)
BENCH_REL(pthrd_rwlock_reads, 8thread, 8, false)
BENCH_REL(timed_wr_pri_reads, 8thread, 8, false)
BENCH_REL(timed_rd_pri_reads, 8thread, 8, false)
BENCHMARK_DRAW_LINE();
BENCH_BASE(folly_rwspin_reads, 16thread, 16, false)
BENCH_REL(shmtx_wr_pri_reads, 16thread, 16, false)
Expand All @@ -1666,6 +1720,8 @@ BENCH_REL(shmtx_r_bare_reads, 16thread, 16, false)
BENCH_REL(folly_ticket_reads, 16thread, 16, false)
BENCH_REL(boost_shared_reads, 16thread, 16, false)
BENCH_REL(pthrd_rwlock_reads, 16thread, 16, false)
BENCH_REL(timed_wr_pri_reads, 16thread, 16, false)
BENCH_REL(timed_rd_pri_reads, 16thread, 16, false)
BENCHMARK_DRAW_LINE();
BENCH_BASE(folly_rwspin_reads, 32thread, 32, false)
BENCH_REL(shmtx_wr_pri_reads, 32thread, 32, false)
Expand All @@ -1675,6 +1731,8 @@ BENCH_REL(shmtx_r_bare_reads, 32thread, 32, false)
BENCH_REL(folly_ticket_reads, 32thread, 32, false)
BENCH_REL(boost_shared_reads, 32thread, 32, false)
BENCH_REL(pthrd_rwlock_reads, 32thread, 32, false)
BENCH_REL(timed_wr_pri_reads, 32thread, 32, false)
BENCH_REL(timed_rd_pri_reads, 32thread, 32, false)
BENCHMARK_DRAW_LINE();
BENCH_BASE(folly_rwspin_reads, 64thread, 64, false)
BENCH_REL(shmtx_wr_pri_reads, 64thread, 64, false)
Expand All @@ -1684,6 +1742,8 @@ BENCH_REL(shmtx_r_bare_reads, 64thread, 64, false)
BENCH_REL(folly_ticket_reads, 64thread, 64, false)
BENCH_REL(boost_shared_reads, 64thread, 64, false)
BENCH_REL(pthrd_rwlock_reads, 64thread, 64, false)
BENCH_REL(timed_wr_pri_reads, 64thread, 64, false)
BENCH_REL(timed_rd_pri_reads, 64thread, 64, false)

// 1 lock used by everybody, 100% writes. Threads only hurt, but it is
// good to not fail catastrophically. Compare to single_thread_lock_unlock
Expand All @@ -1699,6 +1759,8 @@ BENCH_REL(folly_ticket, 1thread_all_write, 1, 1.0, false)
BENCH_REL(boost_shared, 1thread_all_write, 1, 1.0, false)
BENCH_REL(pthrd_rwlock, 1thread_all_write, 1, 1.0, false)
BENCH_REL(pthrd_mutex_, 1thread_all_write, 1, 1.0, false)
BENCH_REL(timed_wr_pri, 1thread_all_write, 1, 1.0, false)
BENCH_REL(timed_rd_pri, 1thread_all_write, 1, 1.0, false)
BENCHMARK_DRAW_LINE();
BENCH_BASE(folly_rwspin, 2thread_all_write, 2, 1.0, false)
BENCH_REL(shmtx_wr_pri, 2thread_all_write, 2, 1.0, false)
Expand All @@ -1707,6 +1769,8 @@ BENCH_REL(folly_ticket, 2thread_all_write, 2, 1.0, false)
BENCH_REL(boost_shared, 2thread_all_write, 2, 1.0, false)
BENCH_REL(pthrd_rwlock, 2thread_all_write, 2, 1.0, false)
BENCH_REL(pthrd_mutex_, 2thread_all_write, 2, 1.0, false)
BENCH_REL(timed_wr_pri, 2thread_all_write, 2, 1.0, false)
BENCH_REL(timed_rd_pri, 2thread_all_write, 2, 1.0, false)
BENCHMARK_DRAW_LINE();
BENCH_BASE(folly_rwspin, 4thread_all_write, 4, 1.0, false)
BENCH_REL(shmtx_wr_pri, 4thread_all_write, 4, 1.0, false)
Expand All @@ -1715,6 +1779,8 @@ BENCH_REL(folly_ticket, 4thread_all_write, 4, 1.0, false)
BENCH_REL(boost_shared, 4thread_all_write, 4, 1.0, false)
BENCH_REL(pthrd_rwlock, 4thread_all_write, 4, 1.0, false)
BENCH_REL(pthrd_mutex_, 4thread_all_write, 4, 1.0, false)
BENCH_REL(timed_wr_pri, 4thread_all_write, 4, 1.0, false)
BENCH_REL(timed_rd_pri, 4thread_all_write, 4, 1.0, false)
BENCHMARK_DRAW_LINE();
BENCH_BASE(folly_rwspin, 8thread_all_write, 8, 1.0, false)
BENCH_REL(shmtx_wr_pri, 8thread_all_write, 8, 1.0, false)
Expand All @@ -1723,6 +1789,8 @@ BENCH_REL(folly_ticket, 8thread_all_write, 8, 1.0, false)
BENCH_REL(boost_shared, 8thread_all_write, 8, 1.0, false)
BENCH_REL(pthrd_rwlock, 8thread_all_write, 8, 1.0, false)
BENCH_REL(pthrd_mutex_, 8thread_all_write, 8, 1.0, false)
BENCH_REL(timed_wr_pri, 8thread_all_write, 8, 1.0, false)
BENCH_REL(timed_rd_pri, 8thread_all_write, 8, 1.0, false)
BENCHMARK_DRAW_LINE();
BENCH_BASE(folly_rwspin, 16thread_all_write, 16, 1.0, false)
BENCH_REL(shmtx_wr_pri, 16thread_all_write, 16, 1.0, false)
Expand All @@ -1731,6 +1799,8 @@ BENCH_REL(folly_ticket, 16thread_all_write, 16, 1.0, false)
BENCH_REL(boost_shared, 16thread_all_write, 16, 1.0, false)
BENCH_REL(pthrd_rwlock, 16thread_all_write, 16, 1.0, false)
BENCH_REL(pthrd_mutex_, 16thread_all_write, 16, 1.0, false)
BENCH_REL(timed_wr_pri, 16thread_all_write, 16, 1.0, false)
BENCH_REL(timed_rd_pri, 16thread_all_write, 16, 1.0, false)
BENCHMARK_DRAW_LINE();
BENCH_BASE(folly_rwspin, 32thread_all_write, 32, 1.0, false)
BENCH_REL(shmtx_wr_pri, 32thread_all_write, 32, 1.0, false)
Expand All @@ -1739,6 +1809,8 @@ BENCH_REL(folly_ticket, 32thread_all_write, 32, 1.0, false)
BENCH_REL(boost_shared, 32thread_all_write, 32, 1.0, false)
BENCH_REL(pthrd_rwlock, 32thread_all_write, 32, 1.0, false)
BENCH_REL(pthrd_mutex_, 32thread_all_write, 32, 1.0, false)
BENCH_REL(timed_wr_pri, 32thread_all_write, 32, 1.0, false)
BENCH_REL(timed_rd_pri, 32thread_all_write, 32, 1.0, false)
BENCHMARK_DRAW_LINE();
BENCH_BASE(folly_rwspin, 64thread_all_write, 64, 1.0, false)
BENCH_REL(shmtx_wr_pri, 64thread_all_write, 64, 1.0, false)
Expand All @@ -1747,6 +1819,8 @@ BENCH_REL(folly_ticket, 64thread_all_write, 64, 1.0, false)
BENCH_REL(boost_shared, 64thread_all_write, 64, 1.0, false)
BENCH_REL(pthrd_rwlock, 64thread_all_write, 64, 1.0, false)
BENCH_REL(pthrd_mutex_, 64thread_all_write, 64, 1.0, false)
BENCH_REL(timed_wr_pri, 64thread_all_write, 64, 1.0, false)
BENCH_REL(timed_rd_pri, 64thread_all_write, 64, 1.0, false)

// 1 lock used by everybody, 10% writes. Not much scaling to be had. Perf
// is best at 1 thread, once you've got multiple threads > 8 threads hurts.
Expand All @@ -1758,48 +1832,62 @@ BENCH_REL(shmtx_rd_pri, 1thread_10pct_write, 1, 0.10, false)
BENCH_REL(folly_ticket, 1thread_10pct_write, 1, 0.10, false)
BENCH_REL(boost_shared, 1thread_10pct_write, 1, 0.10, false)
BENCH_REL(pthrd_rwlock, 1thread_10pct_write, 1, 0.10, false)
BENCH_REL(timed_wr_pri, 1thread_10pct_write, 1, 0.10, false)
BENCH_REL(timed_rd_pri, 1thread_10pct_write, 1, 0.10, false)
BENCHMARK_DRAW_LINE();
BENCH_BASE(folly_rwspin, 2thread_10pct_write, 2, 0.10, false)
BENCH_REL(shmtx_wr_pri, 2thread_10pct_write, 2, 0.10, false)
BENCH_REL(shmtx_rd_pri, 2thread_10pct_write, 2, 0.10, false)
BENCH_REL(folly_ticket, 2thread_10pct_write, 2, 0.10, false)
BENCH_REL(boost_shared, 2thread_10pct_write, 2, 0.10, false)
BENCH_REL(pthrd_rwlock, 2thread_10pct_write, 2, 0.10, false)
BENCH_REL(timed_wr_pri, 2thread_10pct_write, 2, 0.10, false)
BENCH_REL(timed_rd_pri, 2thread_10pct_write, 2, 0.10, false)
BENCHMARK_DRAW_LINE();
BENCH_BASE(folly_rwspin, 4thread_10pct_write, 4, 0.10, false)
BENCH_REL(shmtx_wr_pri, 4thread_10pct_write, 4, 0.10, false)
BENCH_REL(shmtx_rd_pri, 4thread_10pct_write, 4, 0.10, false)
BENCH_REL(folly_ticket, 4thread_10pct_write, 4, 0.10, false)
BENCH_REL(boost_shared, 4thread_10pct_write, 4, 0.10, false)
BENCH_REL(pthrd_rwlock, 4thread_10pct_write, 4, 0.10, false)
BENCH_REL(timed_wr_pri, 4thread_10pct_write, 4, 0.10, false)
BENCH_REL(timed_rd_pri, 4thread_10pct_write, 4, 0.10, false)
BENCHMARK_DRAW_LINE();
BENCH_BASE(folly_rwspin, 8thread_10pct_write, 8, 0.10, false)
BENCH_REL(shmtx_wr_pri, 8thread_10pct_write, 8, 0.10, false)
BENCH_REL(shmtx_rd_pri, 8thread_10pct_write, 8, 0.10, false)
BENCH_REL(folly_ticket, 8thread_10pct_write, 8, 0.10, false)
BENCH_REL(boost_shared, 8thread_10pct_write, 8, 0.10, false)
BENCH_REL(pthrd_rwlock, 8thread_10pct_write, 8, 0.10, false)
BENCH_REL(timed_wr_pri, 8thread_10pct_write, 8, 0.10, false)
BENCH_REL(timed_rd_pri, 8thread_10pct_write, 8, 0.10, false)
BENCHMARK_DRAW_LINE();
BENCH_BASE(folly_rwspin, 16thread_10pct_write, 16, 0.10, false)
BENCH_REL(shmtx_wr_pri, 16thread_10pct_write, 16, 0.10, false)
BENCH_REL(shmtx_rd_pri, 16thread_10pct_write, 16, 0.10, false)
BENCH_REL(folly_ticket, 16thread_10pct_write, 16, 0.10, false)
BENCH_REL(boost_shared, 16thread_10pct_write, 16, 0.10, false)
BENCH_REL(pthrd_rwlock, 16thread_10pct_write, 16, 0.10, false)
BENCH_REL(timed_wr_pri, 16thread_10pct_write, 16, 0.10, false)
BENCH_REL(timed_rd_pri, 16thread_10pct_write, 16, 0.10, false)
BENCHMARK_DRAW_LINE();
BENCH_BASE(folly_rwspin, 32thread_10pct_write, 32, 0.10, false)
BENCH_REL(shmtx_wr_pri, 32thread_10pct_write, 32, 0.10, false)
BENCH_REL(shmtx_rd_pri, 32thread_10pct_write, 32, 0.10, false)
BENCH_REL(folly_ticket, 32thread_10pct_write, 32, 0.10, false)
BENCH_REL(boost_shared, 32thread_10pct_write, 32, 0.10, false)
BENCH_REL(pthrd_rwlock, 32thread_10pct_write, 32, 0.10, false)
BENCH_REL(timed_wr_pri, 32thread_10pct_write, 32, 0.10, false)
BENCH_REL(timed_rd_pri, 32thread_10pct_write, 32, 0.10, false)
BENCHMARK_DRAW_LINE();
BENCH_BASE(folly_rwspin, 64thread_10pct_write, 64, 0.10, false)
BENCH_REL(shmtx_wr_pri, 64thread_10pct_write, 64, 0.10, false)
BENCH_REL(shmtx_rd_pri, 64thread_10pct_write, 64, 0.10, false)
BENCH_REL(folly_ticket, 64thread_10pct_write, 64, 0.10, false)
BENCH_REL(boost_shared, 64thread_10pct_write, 64, 0.10, false)
BENCH_REL(pthrd_rwlock, 64thread_10pct_write, 64, 0.10, false)
BENCH_REL(timed_wr_pri, 64thread_10pct_write, 64, 0.10, false)
BENCH_REL(timed_rd_pri, 64thread_10pct_write, 64, 0.10, false)

// 1 lock used by everybody, 1% writes. This is a more realistic example
// than the concurrent_*_reads benchmark, but still shows SharedMutex locks
Expand All @@ -1814,6 +1902,8 @@ BENCH_REL(shmtx_r_bare, 1thread_1pct_write, 1, 0.01, false)
BENCH_REL(folly_ticket, 1thread_1pct_write, 1, 0.01, false)
BENCH_REL(boost_shared, 1thread_1pct_write, 1, 0.01, false)
BENCH_REL(pthrd_rwlock, 1thread_1pct_write, 1, 0.01, false)
BENCH_REL(timed_wr_pri, 1thread_1pct_write, 1, 0.10, false)
BENCH_REL(timed_rd_pri, 1thread_1pct_write, 1, 0.10, false)
BENCHMARK_DRAW_LINE();
BENCH_BASE(folly_rwspin, 2thread_1pct_write, 2, 0.01, false)
BENCH_REL(shmtx_wr_pri, 2thread_1pct_write, 2, 0.01, false)
Expand All @@ -1823,6 +1913,8 @@ BENCH_REL(shmtx_r_bare, 2thread_1pct_write, 2, 0.01, false)
BENCH_REL(folly_ticket, 2thread_1pct_write, 2, 0.01, false)
BENCH_REL(boost_shared, 2thread_1pct_write, 2, 0.01, false)
BENCH_REL(pthrd_rwlock, 2thread_1pct_write, 2, 0.01, false)
BENCH_REL(timed_wr_pri, 2thread_1pct_write, 2, 0.10, false)
BENCH_REL(timed_rd_pri, 2thread_1pct_write, 2, 0.10, false)
BENCHMARK_DRAW_LINE();
BENCH_BASE(folly_rwspin, 4thread_1pct_write, 4, 0.01, false)
BENCH_REL(shmtx_wr_pri, 4thread_1pct_write, 4, 0.01, false)
Expand All @@ -1832,6 +1924,8 @@ BENCH_REL(shmtx_r_bare, 4thread_1pct_write, 4, 0.01, false)
BENCH_REL(folly_ticket, 4thread_1pct_write, 4, 0.01, false)
BENCH_REL(boost_shared, 4thread_1pct_write, 4, 0.01, false)
BENCH_REL(pthrd_rwlock, 4thread_1pct_write, 4, 0.01, false)
BENCH_REL(timed_wr_pri, 4thread_1pct_write, 4, 0.10, false)
BENCH_REL(timed_rd_pri, 4thread_1pct_write, 4, 0.10, false)
BENCHMARK_DRAW_LINE();
BENCH_BASE(folly_rwspin, 8thread_1pct_write, 8, 0.01, false)
BENCH_REL(shmtx_wr_pri, 8thread_1pct_write, 8, 0.01, false)
Expand All @@ -1841,6 +1935,8 @@ BENCH_REL(shmtx_r_bare, 8thread_1pct_write, 8, 0.01, false)
BENCH_REL(folly_ticket, 8thread_1pct_write, 8, 0.01, false)
BENCH_REL(boost_shared, 8thread_1pct_write, 8, 0.01, false)
BENCH_REL(pthrd_rwlock, 8thread_1pct_write, 8, 0.01, false)
BENCH_REL(timed_wr_pri, 8thread_1pct_write, 8, 0.10, false)
BENCH_REL(timed_rd_pri, 8thread_1pct_write, 8, 0.10, false)
BENCHMARK_DRAW_LINE();
BENCH_BASE(folly_rwspin, 16thread_1pct_write, 16, 0.01, false)
BENCH_REL(shmtx_wr_pri, 16thread_1pct_write, 16, 0.01, false)
Expand All @@ -1850,6 +1946,8 @@ BENCH_REL(shmtx_r_bare, 16thread_1pct_write, 16, 0.01, false)
BENCH_REL(folly_ticket, 16thread_1pct_write, 16, 0.01, false)
BENCH_REL(boost_shared, 16thread_1pct_write, 16, 0.01, false)
BENCH_REL(pthrd_rwlock, 16thread_1pct_write, 16, 0.01, false)
BENCH_REL(timed_wr_pri, 16thread_1pct_write, 16, 0.10, false)
BENCH_REL(timed_rd_pri, 16thread_1pct_write, 16, 0.10, false)
BENCHMARK_DRAW_LINE();
BENCH_BASE(folly_rwspin, 32thread_1pct_write, 32, 0.01, false)
BENCH_REL(shmtx_wr_pri, 32thread_1pct_write, 32, 0.01, false)
Expand All @@ -1859,6 +1957,8 @@ BENCH_REL(shmtx_r_bare, 32thread_1pct_write, 32, 0.01, false)
BENCH_REL(folly_ticket, 32thread_1pct_write, 32, 0.01, false)
BENCH_REL(boost_shared, 32thread_1pct_write, 32, 0.01, false)
BENCH_REL(pthrd_rwlock, 32thread_1pct_write, 32, 0.01, false)
BENCH_REL(timed_wr_pri, 32thread_1pct_write, 32, 0.10, false)
BENCH_REL(timed_rd_pri, 32thread_1pct_write, 32, 0.10, false)
BENCHMARK_DRAW_LINE();
BENCH_BASE(folly_rwspin, 64thread_1pct_write, 64, 0.01, false)
BENCH_REL(shmtx_wr_pri, 64thread_1pct_write, 64, 0.01, false)
Expand All @@ -1868,6 +1968,8 @@ BENCH_REL(shmtx_r_bare, 64thread_1pct_write, 64, 0.01, false)
BENCH_REL(folly_ticket, 64thread_1pct_write, 64, 0.01, false)
BENCH_REL(boost_shared, 64thread_1pct_write, 64, 0.01, false)
BENCH_REL(pthrd_rwlock, 64thread_1pct_write, 64, 0.01, false)
BENCH_REL(timed_wr_pri, 64thread_1pct_write, 64, 0.10, false)
BENCH_REL(timed_rd_pri, 64thread_1pct_write, 64, 0.10, false)

// Worst case scenario for deferred locks. No actual sharing, likely that
// read operations will have to first set the kDeferredReadersPossibleBit,
Expand Down Expand Up @@ -1944,27 +2046,35 @@ BENCH_REL(shmtx_r_bare_ping_pong, burn0, 1, 0)
BENCH_REL(folly_ticket_ping_pong, burn0, 1, 0)
BENCH_REL(boost_shared_ping_pong, burn0, 1, 0)
BENCH_REL(pthrd_rwlock_ping_pong, burn0, 1, 0)
BENCH_REL(timed_wr_pri_ping_pong, burn0, 1, 0)
BENCH_REL(timed_rd_pri_ping_pong, burn0, 1, 0)
BENCHMARK_DRAW_LINE();
BENCH_BASE(folly_rwspin_ping_pong, burn100k, 100, 100000)
BENCH_REL(shmtx_w_bare_ping_pong, burn100k, 100, 100000)
BENCH_REL(shmtx_r_bare_ping_pong, burn100k, 100, 100000)
BENCH_REL(folly_ticket_ping_pong, burn100k, 100, 100000)
BENCH_REL(boost_shared_ping_pong, burn100k, 100, 100000)
BENCH_REL(pthrd_rwlock_ping_pong, burn100k, 100, 100000)
BENCH_REL(timed_wr_pri_ping_pong, burn100k, 100, 100000)
BENCH_REL(timed_rd_pri_ping_pong, burn100k, 100, 100000)
BENCHMARK_DRAW_LINE();
BENCH_BASE(folly_rwspin_ping_pong, burn300k, 100, 300000)
BENCH_REL(shmtx_w_bare_ping_pong, burn300k, 100, 300000)
BENCH_REL(shmtx_r_bare_ping_pong, burn300k, 100, 300000)
BENCH_REL(folly_ticket_ping_pong, burn300k, 100, 300000)
BENCH_REL(boost_shared_ping_pong, burn300k, 100, 300000)
BENCH_REL(pthrd_rwlock_ping_pong, burn300k, 100, 300000)
BENCH_REL(timed_wr_pri_ping_pong, burn300k, 100, 300000)
BENCH_REL(timed_rd_pri_ping_pong, burn300k, 100, 300000)
BENCHMARK_DRAW_LINE();
BENCH_BASE(folly_rwspin_ping_pong, burn1M, 1000, 1000000)
BENCH_REL(shmtx_w_bare_ping_pong, burn1M, 1000, 1000000)
BENCH_REL(shmtx_r_bare_ping_pong, burn1M, 1000, 1000000)
BENCH_REL(folly_ticket_ping_pong, burn1M, 1000, 1000000)
BENCH_REL(boost_shared_ping_pong, burn1M, 1000, 1000000)
BENCH_REL(pthrd_rwlock_ping_pong, burn1M, 1000, 1000000)
BENCH_REL(timed_wr_pri_ping_pong, burn1M, 1000, 1000000)
BENCH_REL(timed_rd_pri_ping_pong, burn1M, 1000, 1000000)

// Reproduce with 10 minutes and
// sudo nice -n -20
Expand Down

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