lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Sun, 4 Nov 2012 20:59:36 -0500 From: Luming Yu <luming.yu@...il.com> To: arnd@...db.de, linux-kernel@...r.kernel.org Cc: Luming Yu <luming.yu@...il.com>, Luming Yu <luming.yu@...el.com> Subject: [PATCH 05/13] HW-latency: Add CPU field in sample output The filed tells user the sample is from which cpu. Signed-off-by: Luming Yu <luming.yu@...el.com> --- drivers/misc/hw_latency_test.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/misc/hw_latency_test.c b/drivers/misc/hw_latency_test.c index 4303644..256b1c0 100644 --- a/drivers/misc/hw_latency_test.c +++ b/drivers/misc/hw_latency_test.c @@ -124,11 +124,13 @@ static struct sample *buffer_get_sample(struct sample *sample) static int buffer_add_sample(u64 sample) { int ret = 0; + unsigned int cpu = smp_processor_id(); if (sample > data.threshold) { struct sample s; data.count++; + s.cpu = cpu; s.seqnum = data.count; s.duration = sample; s.timestamp = CURRENT_TIME; @@ -615,7 +617,8 @@ static ssize_t debug_sample_fread(struct file *filp, char __user *ubuf, goto out; } } - len = snprintf(buf, sizeof(buf), "%010lu.%010lu\t%llu\n", + len = snprintf(buf, sizeof(buf), "[%d]%010lu.%010lu\t%llu\n", + sample->cpu, sample->timestamp.tv_sec, sample->timestamp.tv_nsec, sample->duration); -- 1.7.12.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists