From: Honnappa Nagarahalli <Honnappa.Nagarahalli@arm.com>
To: Joyce Kong <Joyce.Kong@arm.com>,
"thomas@monjalon.net" <thomas@monjalon.net>,
"david.marchand@redhat.com" <david.marchand@redhat.com>,
Ruifeng Wang <Ruifeng.Wang@arm.com>,
"konstantin.ananyev@intel.com" <konstantin.ananyev@intel.com>,
"rsanford@akamai.com" <rsanford@akamai.com>,
"erik.g.carrillo@intel.com" <erik.g.carrillo@intel.com>,
"olivier.matz@6wind.com" <olivier.matz@6wind.com>,
"yipeng1.wang@intel.com" <yipeng1.wang@intel.com>,
"sameh.gobriel@intel.com" <sameh.gobriel@intel.com>,
"bruce.richardson@intel.com" <bruce.richardson@intel.com>,
"vladimir.medvedkin@intel.com" <vladimir.medvedkin@intel.com>,
"anatoly.burakov@intel.com" <anatoly.burakov@intel.com>,
"andrew.rybchenko@oktetlabs.ru" <andrew.rybchenko@oktetlabs.ru>,
"jerinj@marvell.com" <jerinj@marvell.com>,
"declan.doherty@intel.com" <declan.doherty@intel.com>,
"ciara.power@intel.com" <ciara.power@intel.com>,
"xiaoyun.li@intel.com" <xiaoyun.li@intel.com>,
"nicolas.chautru@intel.com" <nicolas.chautru@intel.com>,
"maryam.tahhan@intel.com" <maryam.tahhan@intel.com>,
"reshma.pattan@intel.com" <reshma.pattan@intel.com>,
"cristian.dumitrescu@intel.com" <cristian.dumitrescu@intel.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>, nd <nd@arm.com>,
Honnappa Nagarahalli <Honnappa.Nagarahalli@arm.com>,
nd <nd@arm.com>
Subject: Re: [dpdk-dev] [PATCH v1 04/12] test/stack_perf: use compiler atomics for lcore sync
Date: Tue, 9 Nov 2021 21:12:05 +0000 [thread overview]
Message-ID: <DBAPR08MB5814289C038D526E7A8EF87F98929@DBAPR08MB5814.eurprd08.prod.outlook.com> (raw)
In-Reply-To: <20210802101847.3462-5-joyce.kong@arm.com>
<snip>
>
> Convert rte_atomic usages to compiler atomic built-ins for lcore sync in
> stack_perf test cases.
>
> Signed-off-by: Joyce Kong <joyce.kong@arm.com>
> Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
Looks good
Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
> ---
> app/test/test_stack_perf.c | 14 ++++++--------
> 1 file changed, 6 insertions(+), 8 deletions(-)
>
> diff --git a/app/test/test_stack_perf.c b/app/test/test_stack_perf.c index
> 4ee40d5d19..1eae00a334 100644
> --- a/app/test/test_stack_perf.c
> +++ b/app/test/test_stack_perf.c
> @@ -6,7 +6,6 @@
> #include <stdio.h>
> #include <inttypes.h>
>
> -#include <rte_atomic.h>
> #include <rte_cycles.h>
> #include <rte_launch.h>
> #include <rte_pause.h>
> @@ -24,7 +23,7 @@
> */
> static volatile unsigned int bulk_sizes[] = {8, MAX_BURST};
>
> -static rte_atomic32_t lcore_barrier;
> +static uint32_t lcore_barrier;
>
> struct lcore_pair {
> unsigned int c1;
> @@ -144,9 +143,8 @@ bulk_push_pop(void *p)
> s = args->s;
> size = args->sz;
>
> - rte_atomic32_sub(&lcore_barrier, 1);
> - while (rte_atomic32_read(&lcore_barrier) != 0)
> - rte_pause();
> + __atomic_fetch_sub(&lcore_barrier, 1, __ATOMIC_RELAXED);
> + rte_wait_until_equal_32(&lcore_barrier, 0, __ATOMIC_RELAXED);
>
> uint64_t start = rte_rdtsc();
>
> @@ -175,7 +173,7 @@ run_on_core_pair(struct lcore_pair *cores, struct
> rte_stack *s,
> unsigned int i;
>
> for (i = 0; i < RTE_DIM(bulk_sizes); i++) {
> - rte_atomic32_set(&lcore_barrier, 2);
> + __atomic_store_n(&lcore_barrier, 2, __ATOMIC_RELAXED);
>
> args[0].sz = args[1].sz = bulk_sizes[i];
> args[0].s = args[1].s = s;
> @@ -208,7 +206,7 @@ run_on_n_cores(struct rte_stack *s, lcore_function_t
> fn, int n)
> int cnt = 0;
> double avg;
>
> - rte_atomic32_set(&lcore_barrier, n);
> + __atomic_store_n(&lcore_barrier, n, __ATOMIC_RELAXED);
>
> RTE_LCORE_FOREACH_WORKER(lcore_id) {
> if (++cnt >= n)
> @@ -302,7 +300,7 @@ __test_stack_perf(uint32_t flags)
> struct lcore_pair cores;
> struct rte_stack *s;
>
> - rte_atomic32_init(&lcore_barrier);
> + __atomic_store_n(&lcore_barrier, 0, __ATOMIC_RELAXED);
>
> s = rte_stack_create(STACK_NAME, STACK_SIZE, rte_socket_id(),
> flags);
> if (s == NULL) {
> --
> 2.17.1
next prev parent reply other threads:[~2021-11-09 21:12 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-02 10:18 [dpdk-dev] [PATCH v1 00/12] use compiler atomic builtins for app Joyce Kong
2021-08-02 10:18 ` [dpdk-dev] [PATCH v1 01/12] test/pmd_perf: use compiler atomic builtins for polling sync Joyce Kong
2021-11-08 22:50 ` Honnappa Nagarahalli
2021-11-10 6:10 ` Joyce Kong
2021-08-02 10:18 ` [dpdk-dev] [PATCH v1 02/12] test/ring_perf: use compiler atomic builtins for lcores sync Joyce Kong
2021-11-09 5:43 ` Honnappa Nagarahalli
2021-08-02 10:18 ` [dpdk-dev] [PATCH v1 03/12] test/timer: use compiler atomic builtins for sync Joyce Kong
2021-11-09 20:59 ` Honnappa Nagarahalli
2021-08-02 10:18 ` [dpdk-dev] [PATCH v1 04/12] test/stack_perf: use compiler atomics for lcore sync Joyce Kong
2021-11-09 21:12 ` Honnappa Nagarahalli [this message]
2021-08-02 10:18 ` [dpdk-dev] [PATCH v1 05/12] test/bpf: use compiler atomics for calculation Joyce Kong
2021-08-02 10:18 ` [dpdk-dev] [PATCH v1 06/12] test/func_reentrancy: use compiler atomic for data sync Joyce Kong
2021-11-09 21:54 ` Honnappa Nagarahalli
2021-08-02 10:18 ` [dpdk-dev] [PATCH v1 07/12] app/eventdev: use compiler atomic builtins for packets sync Joyce Kong
2021-11-10 23:19 ` Honnappa Nagarahalli
2021-11-11 7:27 ` Joyce Kong
2021-08-02 10:18 ` [dpdk-dev] [PATCH v1 08/12] app/crypto: use compiler atomic builtins for display sync Joyce Kong
2021-11-09 22:11 ` Honnappa Nagarahalli
2021-08-02 10:18 ` [dpdk-dev] [PATCH v1 09/12] app/compress: " Joyce Kong
2021-11-09 22:59 ` Honnappa Nagarahalli
2021-11-11 8:13 ` Joyce Kong
2021-08-02 10:18 ` [dpdk-dev] [PATCH v1 10/12] app/testpmd: use compiler atomic builtins for port sync Joyce Kong
2021-11-09 23:14 ` Honnappa Nagarahalli
2021-11-11 8:51 ` Joyce Kong
2021-08-02 10:18 ` [dpdk-dev] [PATCH v1 11/12] app/bbdev: use compiler atomics for thread sync Joyce Kong
2021-11-10 21:25 ` Honnappa Nagarahalli
2021-08-02 10:18 ` [dpdk-dev] [PATCH v1 12/12] app: remove unnecessary include of atomic Joyce Kong
2021-10-21 6:35 ` [dpdk-dev] [PATCH v1 00/12] use compiler atomic builtins for app Joyce Kong
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