Re: [dpdk-dev] [PATCH v2]:rte_timer:timer lag issue correction

[Karmarkar Suyash <skarmarkar@sonusnet.com>]

Hello Robert/Thomas,

Can you please review the changes in V2 of the Patch and suggest next steps? Thanks

Regards
Suyash Karmarkar

-----Original Message-----
From: Karmarkar Suyash 
Sent: Thursday, September 29, 2016 10:27 AM
To: dev@dpdk.org; thomas.monjalon@6wind.com; rsanford@akamai.com; reshma.pattan@intel.com
Subject: RE: [PATCH v2]:rte_timer:timer lag issue correction

Hello,

Can you please review the changes and suggest next steps? Thanks

Regards
Suyash Karmarkar

-----Original Message-----
From: Karmarkar Suyash
Sent: Wednesday, September 21, 2016 4:54 PM
To: dev@dpdk.org; thomas.monjalon@6wind.com; rsanford@akamai.com; reshma.pattan@intel.com
Cc: Karmarkar Suyash <skarmarkar@sonusnet.com>
Subject: [PATCH v2]:rte_timer:timer lag issue correction

For Periodic timers ,if the lag gets introduced, the current code added additional delay when the next peridoc timer was initialized by not taking into account the delay added, with this fix the code would start the next occurrence of timer keeping in account the lag added.Corrected the behavior.

Fixes: 9b15ba89 ("timer: use a skip list")

Karmarkar Suyash (1):
Signed-off-by: Karmarkar Suyash <skarmarkar@sonusnet.com>

 lib/librte_timer/rte_timer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

 
---
 lib/librte_timer/rte_timer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/librte_timer/rte_timer.c b/lib/librte_timer/rte_timer.c index 43da836..18782fa 100644
--- a/lib/librte_timer/rte_timer.c
+++ b/lib/librte_timer/rte_timer.c
@@ -613,7 +613,7 @@ void rte_timer_manage(void)
 			status.owner = (int16_t)lcore_id;
 			rte_wmb();
 			tim->status.u32 = status.u32;
-			__rte_timer_reset(tim, cur_time + tim->period,
+			__rte_timer_reset(tim, tim->expire + tim->period,
 				tim->period, lcore_id, tim->f, tim->arg, 1);
 			rte_spinlock_unlock(&priv_timer[lcore_id].list_lock);
 		}

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2.9.3.windows.1