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* rte_rdtsc() - what is the performance impact of using rte_rdtsc() time
@ 2023-08-29 14:55 Hari Haran
  2023-09-05 23:29 ` Stephen Hemminger
  0 siblings, 1 reply; 4+ messages in thread
From: Hari Haran @ 2023-08-29 14:55 UTC (permalink / raw)
  To: users

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Hi All,

Subject: rte_rdtsc() - what is the performance impact of using rte_rdtsc()
time under lcore thread while(1)

Requirement:

   1. Store the packet received timestamp - based on it packets will be
   removed from buffer if it exceeds the threshold timer of buffer
   2. Two threads are available, One is lcore(dedicated core) and another
   is pthread(not a dedicated core. In pthread, have to get the timestamp of
   last received packet timestamp


Query:

   1. For every packet reception in lcore thread under while(1), will get
   the packet received timestamp using  rte_rdtsc() function. Whether usage of
   rte_rdtsc() function adds more delay in packet processing?
   2. Is there any way to convert rte_rdtsc() timestamp value to current
   system time in pthread()? In pthread, the last packet received time needed
   in the form of system time.


Thanks in advance.

Regards,
Hariharan

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^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2023-10-03 17:18 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-08-29 14:55 rte_rdtsc() - what is the performance impact of using rte_rdtsc() time Hari Haran
2023-09-05 23:29 ` Stephen Hemminger
2023-10-03 10:19   ` Hari Haran
2023-10-03 17:17     ` Stephen Hemminger

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