From: Jingyi Wang <wangjingyi11@huawei.com> To: <drjones@redhat.com>, <kvm@vger.kernel.org>, <kvmarm@lists.cs.columbia.edu> Cc: <maz@kernel.org>, <wanghaibin.wang@huawei.com>, <yuzenghui@huawei.com>, <eric.auger@redhat.com>, <wangjingyi11@huawei.com> Subject: [kvm-unit-tests PATCH v2 7/8] arm64: microbench: Add time limit for each individual test Date: Thu, 2 Jul 2020 11:01:31 +0800 [thread overview] Message-ID: <20200702030132.20252-8-wangjingyi11@huawei.com> (raw) In-Reply-To: <20200702030132.20252-1-wangjingyi11@huawei.com> Besides using separate running times parameter, we add time limit for loop_test to make sure each test should be done in a certain time(5 sec here). Signed-off-by: Jingyi Wang <wangjingyi11@huawei.com> --- arm/micro-bench.c | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) diff --git a/arm/micro-bench.c b/arm/micro-bench.c index 506d2f9..4c962b7 100644 --- a/arm/micro-bench.c +++ b/arm/micro-bench.c @@ -23,6 +23,7 @@ #include <asm/gic-v3-its.h> #define NTIMES (1U << 16) +#define MAX_NS (5 * 1000 * 1000 * 1000UL) static u32 cntfrq; @@ -258,22 +259,26 @@ static void loop_test(struct exit_test *test) uint64_t start, end, total_ticks, ntimes = 0; struct ns_time total_ns, avg_ns; + total_ticks = 0; if (test->prep) { if(!test->prep()) { printf("%s test skipped\n", test->name); return; } } - isb(); - start = read_sysreg(cntpct_el0); - while (ntimes < test->times) { + + while (ntimes < test->times && total_ns.ns < MAX_NS) { + isb(); + start = read_sysreg(cntpct_el0); test->exec(); + isb(); + end = read_sysreg(cntpct_el0); + ntimes++; + total_ticks += (end - start); + ticks_to_ns_time(total_ticks, &total_ns); } - isb(); - end = read_sysreg(cntpct_el0); - total_ticks = end - start; ticks_to_ns_time(total_ticks, &total_ns); avg_ns.ns = total_ns.ns / ntimes; avg_ns.ns_frac = total_ns.ns_frac / ntimes; -- 2.19.1
WARNING: multiple messages have this Message-ID (diff)
From: Jingyi Wang <wangjingyi11@huawei.com> To: <drjones@redhat.com>, <kvm@vger.kernel.org>, <kvmarm@lists.cs.columbia.edu> Cc: maz@kernel.org Subject: [kvm-unit-tests PATCH v2 7/8] arm64: microbench: Add time limit for each individual test Date: Thu, 2 Jul 2020 11:01:31 +0800 [thread overview] Message-ID: <20200702030132.20252-8-wangjingyi11@huawei.com> (raw) In-Reply-To: <20200702030132.20252-1-wangjingyi11@huawei.com> Besides using separate running times parameter, we add time limit for loop_test to make sure each test should be done in a certain time(5 sec here). Signed-off-by: Jingyi Wang <wangjingyi11@huawei.com> --- arm/micro-bench.c | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) diff --git a/arm/micro-bench.c b/arm/micro-bench.c index 506d2f9..4c962b7 100644 --- a/arm/micro-bench.c +++ b/arm/micro-bench.c @@ -23,6 +23,7 @@ #include <asm/gic-v3-its.h> #define NTIMES (1U << 16) +#define MAX_NS (5 * 1000 * 1000 * 1000UL) static u32 cntfrq; @@ -258,22 +259,26 @@ static void loop_test(struct exit_test *test) uint64_t start, end, total_ticks, ntimes = 0; struct ns_time total_ns, avg_ns; + total_ticks = 0; if (test->prep) { if(!test->prep()) { printf("%s test skipped\n", test->name); return; } } - isb(); - start = read_sysreg(cntpct_el0); - while (ntimes < test->times) { + + while (ntimes < test->times && total_ns.ns < MAX_NS) { + isb(); + start = read_sysreg(cntpct_el0); test->exec(); + isb(); + end = read_sysreg(cntpct_el0); + ntimes++; + total_ticks += (end - start); + ticks_to_ns_time(total_ticks, &total_ns); } - isb(); - end = read_sysreg(cntpct_el0); - total_ticks = end - start; ticks_to_ns_time(total_ticks, &total_ns); avg_ns.ns = total_ns.ns / ntimes; avg_ns.ns_frac = total_ns.ns_frac / ntimes; -- 2.19.1 _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
next prev parent reply other threads:[~2020-07-02 3:02 UTC|newest] Thread overview: 78+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-07-02 3:01 [kvm-unit-tests PATCH v2 0/8] arm/arm64: Add IPI/LPI/vtimer latency test Jingyi Wang 2020-07-02 3:01 ` Jingyi Wang 2020-07-02 3:01 ` [kvm-unit-tests PATCH v2 1/8] arm64: microbench: get correct ipi received num Jingyi Wang 2020-07-02 3:01 ` Jingyi Wang 2020-07-02 12:36 ` Auger Eric 2020-07-02 12:36 ` Auger Eric 2020-07-02 3:01 ` [kvm-unit-tests PATCH v2 2/8] arm64: microbench: Use the funcions for ipi test as the general functions for gic(ipi/lpi/timer) test Jingyi Wang 2020-07-02 3:01 ` Jingyi Wang 2020-07-02 5:25 ` Andrew Jones 2020-07-02 5:25 ` Andrew Jones 2020-07-02 8:21 ` Jingyi Wang 2020-07-02 8:21 ` Jingyi Wang 2020-07-02 12:36 ` Auger Eric 2020-07-02 12:36 ` Auger Eric 2020-07-02 3:01 ` [kvm-unit-tests PATCH v2 3/8] arm64: microbench: gic: Add gicv4.1 support for ipi latency test Jingyi Wang 2020-07-02 3:01 ` Jingyi Wang 2020-07-02 8:22 ` Marc Zyngier 2020-07-02 8:22 ` Marc Zyngier 2020-07-02 9:02 ` Jingyi Wang 2020-07-02 9:02 ` Jingyi Wang 2020-07-02 9:17 ` Marc Zyngier 2020-07-02 9:17 ` Marc Zyngier 2020-07-02 9:29 ` Jingyi Wang 2020-07-02 9:29 ` Jingyi Wang 2020-07-02 12:36 ` Auger Eric 2020-07-02 12:36 ` Auger Eric 2020-07-02 13:03 ` Marc Zyngier 2020-07-02 13:03 ` Marc Zyngier 2020-07-02 12:57 ` Auger Eric 2020-07-02 12:57 ` Auger Eric 2020-07-02 13:08 ` Marc Zyngier 2020-07-02 13:08 ` Marc Zyngier 2020-07-02 13:42 ` Auger Eric 2020-07-02 13:42 ` Auger Eric 2020-07-03 3:39 ` Jingyi Wang 2020-07-03 3:39 ` Jingyi Wang 2020-07-02 21:33 ` Andrew Jones 2020-07-02 21:33 ` Andrew Jones 2020-07-02 3:01 ` [kvm-unit-tests PATCH v2 4/8] arm64: its: Handle its command queue wrapping Jingyi Wang 2020-07-02 3:01 ` Jingyi Wang 2020-07-02 13:01 ` Auger Eric 2020-07-02 13:01 ` Auger Eric 2020-07-02 3:01 ` [kvm-unit-tests PATCH v2 5/8] arm64: microbench: its: Add LPI latency test Jingyi Wang 2020-07-02 3:01 ` Jingyi Wang 2020-07-02 13:13 ` Auger Eric 2020-07-02 13:13 ` Auger Eric 2020-07-02 3:01 ` [kvm-unit-tests PATCH v2 6/8] arm64: microbench: Allow each test to specify its running times Jingyi Wang 2020-07-02 3:01 ` Jingyi Wang 2020-07-02 5:29 ` Andrew Jones 2020-07-02 5:29 ` Andrew Jones 2020-07-02 8:46 ` Jingyi Wang 2020-07-02 8:46 ` Jingyi Wang 2020-07-02 13:17 ` Auger Eric 2020-07-02 13:17 ` Auger Eric 2020-07-02 3:01 ` Jingyi Wang [this message] 2020-07-02 3:01 ` [kvm-unit-tests PATCH v2 7/8] arm64: microbench: Add time limit for each individual test Jingyi Wang 2020-07-02 5:48 ` Andrew Jones 2020-07-02 5:48 ` Andrew Jones 2020-07-02 8:47 ` Jingyi Wang 2020-07-02 8:47 ` Jingyi Wang 2020-07-02 13:23 ` Auger Eric 2020-07-02 13:23 ` Auger Eric 2020-07-03 3:42 ` Jingyi Wang 2020-07-03 3:42 ` Jingyi Wang 2020-07-02 3:01 ` [kvm-unit-tests PATCH v2 8/8] arm64: microbench: Add vtimer latency test Jingyi Wang 2020-07-02 3:01 ` Jingyi Wang 2020-07-02 5:44 ` Andrew Jones 2020-07-02 5:44 ` Andrew Jones 2020-07-02 8:56 ` Jingyi Wang 2020-07-02 8:56 ` Jingyi Wang 2020-07-02 13:36 ` Auger Eric 2020-07-02 13:36 ` Auger Eric 2020-07-03 7:41 ` Jingyi Wang 2020-07-03 7:41 ` Jingyi Wang 2020-07-03 7:45 ` Auger Eric 2020-07-03 7:45 ` Auger Eric 2020-07-06 12:23 ` Jingyi Wang 2020-07-06 12:23 ` Jingyi Wang
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