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From: Zhihong Wang <zhihong.wang@intel.com>
To: dev@dpdk.org
Subject: [dpdk-dev] [PATCH RFC v2 1/2] lib/librte_eal: Reduce timer initialization time
Date: Thu, 19 Nov 2015 20:53:47 -0500	[thread overview]
Message-ID: <1447984428-137897-2-git-send-email-zhihong.wang@intel.com> (raw)
In-Reply-To: <1447984428-137897-1-git-send-email-zhihong.wang@intel.com>

Changing from 1/2 second to 1/10 doesn't compromise the precision, and a 4/10 second is worth saving.

Signed-off-by: Zhihong Wang <zhihong.wang@intel.com>
---
 lib/librte_eal/linuxapp/eal/eal_timer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/librte_eal/linuxapp/eal/eal_timer.c b/lib/librte_eal/linuxapp/eal/eal_timer.c
index e0642de..4de0353 100644
--- a/lib/librte_eal/linuxapp/eal/eal_timer.c
+++ b/lib/librte_eal/linuxapp/eal/eal_timer.c
@@ -271,7 +271,7 @@ get_tsc_freq(void)
 #ifdef CLOCK_MONOTONIC_RAW
 #define NS_PER_SEC 1E9
 
-	struct timespec sleeptime = {.tv_nsec = 5E8 }; /* 1/2 second */
+	struct timespec sleeptime = {.tv_nsec = 1E8 }; /* 1/10 second */
 
 	struct timespec t_start, t_end;
 	uint64_t tsc_hz;
-- 
2.5.0

  reply	other threads:[~2015-11-20  8:56 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-20  1:53 [dpdk-dev] [PATCH RFC v2 0/2] Reduce DPDK " Zhihong Wang
2015-11-20  1:53 ` Zhihong Wang [this message]
2015-11-20 16:31   ` [dpdk-dev] [PATCH RFC v2 1/2] lib/librte_eal: Reduce timer " Stephen Hemminger
2015-11-23  1:29     ` Wang, Zhihong
2015-11-20  1:53 ` [dpdk-dev] [PATCH RFC v2 2/2] lib/librte_eal: Remove unnecessary hugepage zero-filling Zhihong Wang
2015-11-20 16:32   ` Stephen Hemminger
2015-11-23  1:31     ` Wang, Zhihong

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