From: Gavin Hu <gavin.hu@arm.com>
To: dev@dpdk.org
Cc: thomas@monjalon.net, bruce.richardson@intel.com,
jerinj@marvell.com, hemant.agrawal@nxp.com,
ferruh.yigit@intel.com, Honnappa.Nagarahalli@arm.com, nd@arm.com,
Gavin Hu <gavin.hu@arm.com>
Subject: [dpdk-dev] [PATCH v2 2/5] test/spinlock: get timestamp more precisely
Date: Fri, 21 Dec 2018 01:42:26 +0800 [thread overview]
Message-ID: <20181220174229.5834-3-gavin.hu@arm.com> (raw)
In-Reply-To: <20181220174229.5834-1-gavin.hu@arm.com>
To precisely benchmark the spinlock performance, uses the precise
version of getting timestamps, which enforces the timestamps are
obtained at the expected places.
Signed-off-by: Gavin Hu <gavin.hu@arm.com>
Reviewed-by: Phil Yang <phil.yang@arm.com>
---
test/test/test_spinlock.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/test/test/test_spinlock.c b/test/test/test_spinlock.c
index 6795195ae..648474833 100644
--- a/test/test/test_spinlock.c
+++ b/test/test/test_spinlock.c
@@ -113,14 +113,14 @@ load_loop_fn(void *func_param)
if (lcore != rte_get_master_lcore())
while (rte_atomic32_read(&synchro) == 0);
- begin = rte_get_timer_cycles();
+ begin = rte_rdtsc_precise();
while (time_diff < hz * TIME_MS / 1000) {
if (use_lock)
rte_spinlock_lock(&lk);
lcount++;
if (use_lock)
rte_spinlock_unlock(&lk);
- time_diff = rte_get_timer_cycles() - begin;
+ time_diff = rte_rdtsc_precise() - begin;
}
lock_count[lcore] = lcount;
return 0;
--
2.11.0
next prev parent reply other threads:[~2018-12-20 17:42 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-20 10:42 [dpdk-dev] [PATCH v1 0/5] spinlock optimization and test case enhancements Gavin Hu
2018-12-20 10:42 ` [dpdk-dev] [PATCH v1 1/5] test/spinlock: remove 1us delay for correct spinlock benchmarking Gavin Hu
2018-12-20 10:42 ` [dpdk-dev] [PATCH v1 2/5] test/spinlock: get timestamp more precisely Gavin Hu
2018-12-20 10:42 ` [dpdk-dev] [PATCH v1 3/5] test/spinlock: amortize the cost of getting time Gavin Hu
2018-12-20 10:42 ` [dpdk-dev] [PATCH v1 4/5] spinlock: move the implementation to arm specific file Gavin Hu
2018-12-20 12:47 ` David Marchand
2018-12-20 12:55 ` David Marchand
2018-12-20 14:40 ` Gavin Hu (Arm Technology China)
2018-12-20 14:36 ` Gavin Hu (Arm Technology China)
2018-12-20 15:09 ` David Marchand
2018-12-20 15:58 ` Gavin Hu (Arm Technology China)
2018-12-20 15:59 ` David Marchand
2018-12-20 10:42 ` [dpdk-dev] [PATCH v1 5/5] spinlock: reimplement with atomic one-way barrier builtins Gavin Hu
2018-12-20 17:42 ` [dpdk-dev] [PATCH v2 0/5] spinlock optimization and test case enhancements Gavin Hu
2018-12-20 17:42 ` [dpdk-dev] [PATCH v2 1/5] test/spinlock: remove 1us delay for correct benchmarking Gavin Hu
2018-12-20 17:42 ` Gavin Hu [this message]
2018-12-20 17:42 ` [dpdk-dev] [PATCH v2 3/5] test/spinlock: amortize the cost of getting time Gavin Hu
2018-12-20 17:42 ` [dpdk-dev] [PATCH v2 4/5] spinlock: reimplement with atomic one-way barrier builtins Gavin Hu
2018-12-20 17:42 ` [dpdk-dev] [PATCH v2 5/5] eal: fix clang compilation error on x86 Gavin Hu
2019-01-15 7:54 ` [dpdk-dev] [PATCH v4 0/4] spinlock optimization and test case enhancements gavin hu
2019-01-15 7:54 ` [dpdk-dev] [PATCH v4 1/4] eal: fix clang compilation error on x86 gavin hu
2019-01-15 7:54 ` [dpdk-dev] [PATCH v4 2/4] test/spinlock: remove 1us delay for correct benchmarking gavin hu
2019-01-15 7:54 ` [dpdk-dev] [PATCH v4 3/4] test/spinlock: amortize the cost of getting time gavin hu
2019-01-15 7:54 ` [dpdk-dev] [PATCH v4 4/4] spinlock: reimplement with atomic one-way barrier builtins gavin hu
2019-01-15 10:32 ` [dpdk-dev] [PATCH v5 0/4] spinlock optimization and test case enhancements gavin hu
2019-01-15 10:32 ` [dpdk-dev] [PATCH v5 1/4] eal: fix clang compilation error on x86 gavin hu
2019-01-15 17:42 ` Honnappa Nagarahalli
2019-01-15 10:32 ` [dpdk-dev] [PATCH v5 2/4] test/spinlock: remove 1us delay for correct benchmarking gavin hu
2019-01-15 10:32 ` [dpdk-dev] [PATCH v5 3/4] test/spinlock: amortize the cost of getting time gavin hu
2019-01-15 10:32 ` [dpdk-dev] [PATCH v5 4/4] spinlock: reimplement with atomic one-way barrier builtins gavin hu
2019-03-08 7:16 ` [dpdk-dev] [PATCH v6 0/3] generic spinlock optimization and test case enhancements Gavin Hu
2019-03-08 7:16 ` [dpdk-dev] [PATCH v6 1/3] test/spinlock: dealy 1 us to create contention Gavin Hu
2019-03-08 7:16 ` [dpdk-dev] [PATCH v6 2/3] test/spinlock: amortize the cost of getting time Gavin Hu
2019-03-08 7:16 ` [dpdk-dev] [PATCH v6 3/3] spinlock: reimplement with atomic one-way barrier builtins Gavin Hu
2019-03-08 7:37 ` [dpdk-dev] [PATCH v7 0/3] generic spinlock optimization and test case enhancements Gavin Hu
2019-03-08 7:37 ` [dpdk-dev] [PATCH v7 1/3] test/spinlock: remove 1us delay for correct benchmarking Gavin Hu
2019-03-08 7:37 ` [dpdk-dev] [PATCH v7 2/3] test/spinlock: amortize the cost of getting time Gavin Hu
2019-03-08 7:37 ` [dpdk-dev] [PATCH v7 3/3] spinlock: reimplement with atomic one-way barrier builtins Gavin Hu
2019-03-08 7:56 ` [dpdk-dev] [PATCH v8 0/3] generic spinlock optimization and test case enhancements Gavin Hu
2019-03-11 12:21 ` Nipun Gupta
2019-03-15 12:21 ` Ananyev, Konstantin
2019-03-15 12:21 ` Ananyev, Konstantin
2019-03-28 7:47 ` Thomas Monjalon
2019-03-28 7:47 ` Thomas Monjalon
2019-03-08 7:56 ` [dpdk-dev] [PATCH v8 1/3] test/spinlock: remove 1us delay for correct benchmarking Gavin Hu
2019-03-08 7:56 ` [dpdk-dev] [PATCH v8 2/3] test/spinlock: amortize the cost of getting time Gavin Hu
2019-03-08 7:56 ` [dpdk-dev] [PATCH v8 3/3] spinlock: reimplement with atomic one-way barrier builtins Gavin Hu
2019-03-12 14:53 ` [dpdk-dev] [EXT] " Jerin Jacob Kollanukkaran
2019-03-14 0:31 ` Honnappa Nagarahalli
2019-03-14 0:31 ` Honnappa Nagarahalli
2019-03-14 2:36 ` Gavin Hu (Arm Technology China)
2019-03-14 2:36 ` Gavin Hu (Arm Technology China)
2019-03-14 14:22 ` Jerin Jacob Kollanukkaran
2019-03-14 14:22 ` Jerin Jacob Kollanukkaran
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