From: Honnappa Nagarahalli <Honnappa.Nagarahalli@arm.com>
To: "Gavin Hu (Arm Technology China)" <Gavin.Hu@arm.com>,
Jerin Jacob <jerin.jacob@caviumnetworks.com>
Cc: Ola Liljedahl <Ola.Liljedahl@arm.com>,
"dev@dpdk.org" <dev@dpdk.org>,
"Ananyev, Konstantin" <konstantin.ananyev@intel.com>,
Steve Capper <Steve.Capper@arm.com>, nd <nd@arm.com>,
"stable@dpdk.org" <stable@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH v3 1/3] ring: read tail using atomic load
Date: Wed, 10 Oct 2018 19:26:55 +0000 [thread overview]
Message-ID: <AM6PR08MB3672EABF141AF2313C4A689298E00@AM6PR08MB3672.eurprd08.prod.outlook.com> (raw)
In-Reply-To: <VI1PR08MB3167DC47C7D01845E51814F98FE00@VI1PR08MB3167.eurprd08.prod.outlook.com>
>
> Hi Jerin,
>
> Following the guide to use the PMU counters(KO inserted and DPDK
> recompiled), the numbers increased 10+ folds(bigger numbers here mean
> more precise?), is this valid and expected?
This is correct, big numbers mean, more precise/granular results.
> No significant difference was seen.
This is what we are interested in. Do you have any before and after this change numbers?
>
> gavin@net-arm-thunderx2:~/community/dpdk$ sudo ./test/test/test -l 16-
> 19,44-47,72-75,100-103 -n 4 --socket-mem=1024 -- -i
> RTE>>ring_perf_autotest (#1 run w/o the patch)
> ### Testing single element and burst enq/deq ### SP/SC single
> enq/dequeue: 103 MP/MC single enq/dequeue: 130 SP/SC burst
> enq/dequeue (size: 8): 18 MP/MC burst enq/dequeue (size: 8): 21 SP/SC
> burst enq/dequeue (size: 32): 7 MP/MC burst enq/dequeue (size: 32): 8
>
> ### Testing empty dequeue ###
> SC empty dequeue: 3.00
> MC empty dequeue: 3.00
>
> ### Testing using a single lcore ###
> SP/SC bulk enq/dequeue (size: 8): 17.48
> MP/MC bulk enq/dequeue (size: 8): 21.77
> SP/SC bulk enq/dequeue (size: 32): 7.39
> MP/MC bulk enq/dequeue (size: 32): 8.52
>
> ### Testing using two hyperthreads ###
> SP/SC bulk enq/dequeue (size: 8): 31.32
> MP/MC bulk enq/dequeue (size: 8): 38.52
> SP/SC bulk enq/dequeue (size: 32): 13.39 MP/MC bulk enq/dequeue (size:
> 32): 14.15
>
> ### Testing using two physical cores ### SP/SC bulk enq/dequeue (size: 8):
> 75.00 MP/MC bulk enq/dequeue (size: 8): 141.97 SP/SC bulk enq/dequeue
> (size: 32): 23.85 MP/MC bulk enq/dequeue (size: 32): 36.13 Test OK
> RTE>>ring_perf_autotest (#2 run w/o the patch)
> ### Testing single element and burst enq/deq ### SP/SC single
> enq/dequeue: 103 MP/MC single enq/dequeue: 130 SP/SC burst
> enq/dequeue (size: 8): 18 MP/MC burst enq/dequeue (size: 8): 21 SP/SC
> burst enq/dequeue (size: 32): 7 MP/MC burst enq/dequeue (size: 32): 8
>
> ### Testing empty dequeue ###
> SC empty dequeue: 3.00
> MC empty dequeue: 3.00
>
> ### Testing using a single lcore ###
> SP/SC bulk enq/dequeue (size: 8): 17.48
> MP/MC bulk enq/dequeue (size: 8): 21.77
> SP/SC bulk enq/dequeue (size: 32): 7.38
> MP/MC bulk enq/dequeue (size: 32): 8.52
>
> ### Testing using two hyperthreads ###
> SP/SC bulk enq/dequeue (size: 8): 31.31
> MP/MC bulk enq/dequeue (size: 8): 38.52
> SP/SC bulk enq/dequeue (size: 32): 13.33 MP/MC bulk enq/dequeue (size:
> 32): 14.16
>
> ### Testing using two physical cores ### SP/SC bulk enq/dequeue (size: 8):
> 75.74 MP/MC bulk enq/dequeue (size: 8): 147.33 SP/SC bulk enq/dequeue
> (size: 32): 24.79 MP/MC bulk enq/dequeue (size: 32): 40.09 Test OK
>
> RTE>>ring_perf_autotest (#1 run w/ the patch)
> ### Testing single element and burst enq/deq ### SP/SC single
> enq/dequeue: 103 MP/MC single enq/dequeue: 129 SP/SC burst
> enq/dequeue (size: 8): 18 MP/MC burst enq/dequeue (size: 8): 22 SP/SC
> burst enq/dequeue (size: 32): 7 MP/MC burst enq/dequeue (size: 32): 8
>
> ### Testing empty dequeue ###
> SC empty dequeue: 3.00
> MC empty dequeue: 4.00
>
> ### Testing using a single lcore ###
> SP/SC bulk enq/dequeue (size: 8): 17.89
> MP/MC bulk enq/dequeue (size: 8): 21.77
> SP/SC bulk enq/dequeue (size: 32): 7.50
> MP/MC bulk enq/dequeue (size: 32): 8.52
>
> ### Testing using two hyperthreads ###
> SP/SC bulk enq/dequeue (size: 8): 31.24
> MP/MC bulk enq/dequeue (size: 8): 38.14
> SP/SC bulk enq/dequeue (size: 32): 13.24 MP/MC bulk enq/dequeue (size:
> 32): 14.69
>
> ### Testing using two physical cores ### SP/SC bulk enq/dequeue (size: 8):
> 74.63 MP/MC bulk enq/dequeue (size: 8): 137.61 SP/SC bulk enq/dequeue
> (size: 32): 24.82 MP/MC bulk enq/dequeue (size: 32): 36.64 Test OK
> RTE>>ring_perf_autotest (#1 run w/ the patch)
> ### Testing single element and burst enq/deq ### SP/SC single
> enq/dequeue: 103 MP/MC single enq/dequeue: 129 SP/SC burst
> enq/dequeue (size: 8): 18 MP/MC burst enq/dequeue (size: 8): 22 SP/SC
> burst enq/dequeue (size: 32): 7 MP/MC burst enq/dequeue (size: 32): 8
>
> ### Testing empty dequeue ###
> SC empty dequeue: 3.00
> MC empty dequeue: 4.00
>
> ### Testing using a single lcore ###
> SP/SC bulk enq/dequeue (size: 8): 17.89
> MP/MC bulk enq/dequeue (size: 8): 21.77
> SP/SC bulk enq/dequeue (size: 32): 7.50
> MP/MC bulk enq/dequeue (size: 32): 8.52
>
> ### Testing using two hyperthreads ###
> SP/SC bulk enq/dequeue (size: 8): 31.53
> MP/MC bulk enq/dequeue (size: 8): 38.59
> SP/SC bulk enq/dequeue (size: 32): 13.24 MP/MC bulk enq/dequeue (size:
> 32): 14.69
>
> ### Testing using two physical cores ### SP/SC bulk enq/dequeue (size: 8):
> 75.60 MP/MC bulk enq/dequeue (size: 8): 149.14 SP/SC bulk enq/dequeue
> (size: 32): 25.13 MP/MC bulk enq/dequeue (size: 32): 40.60 Test OK
>
>
> > -----Original Message-----
> > From: Jerin Jacob <jerin.jacob@caviumnetworks.com>
> > Sent: Monday, October 8, 2018 6:50 PM
> > To: Gavin Hu (Arm Technology China) <Gavin.Hu@arm.com>
> > Cc: Ola Liljedahl <Ola.Liljedahl@arm.com>; dev@dpdk.org; Honnappa
> > Nagarahalli <Honnappa.Nagarahalli@arm.com>; Ananyev, Konstantin
> > <konstantin.ananyev@intel.com>; Steve Capper
> <Steve.Capper@arm.com>;
> > nd <nd@arm.com>; stable@dpdk.org
> > Subject: Re: [PATCH v3 1/3] ring: read tail using atomic load
> >
> > -----Original Message-----
> > > Date: Mon, 8 Oct 2018 10:33:43 +0000
> > > From: "Gavin Hu (Arm Technology China)" <Gavin.Hu@arm.com>
> > > To: Ola Liljedahl <Ola.Liljedahl@arm.com>, Jerin Jacob
> > > <jerin.jacob@caviumnetworks.com>
> > > CC: "dev@dpdk.org" <dev@dpdk.org>, Honnappa Nagarahalli
> > > <Honnappa.Nagarahalli@arm.com>, "Ananyev, Konstantin"
> > > <konstantin.ananyev@intel.com>, Steve Capper
> > <Steve.Capper@arm.com>,
> > > nd <nd@arm.com>, "stable@dpdk.org" <stable@dpdk.org>
> > > Subject: RE: [PATCH v3 1/3] ring: read tail using atomic load
> > >
> > >
> > > I did benchmarking w/o and w/ the patch, it did not show any
> > > noticeable
> > differences in terms of latency.
> > > Here is the full log( 3 runs w/o the patch and 2 runs w/ the patch).
> > >
> > > sudo ./test/test/test -l 16-19,44-47,72-75,100-103 -n 4
> > > --socket-mem=1024 -- -i
> >
> > These counters are running at 100MHz. Use PMU counters to get more
> > accurate results.
> >
> > https://doc.dpdk.org/guides/prog_guide/profile_app.html
> > See: 55.2. Profiling on ARM64
> >
next prev parent reply other threads:[~2018-10-10 19:26 UTC|newest]
Thread overview: 131+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-06 1:18 [dpdk-dev] [PATCH] ring: fix c11 memory ordering issue Gavin Hu
2018-08-06 9:19 ` Thomas Monjalon
2018-08-08 1:39 ` Gavin Hu
2018-08-07 3:19 ` [dpdk-dev] [PATCH v2] " Gavin Hu
2018-08-07 5:56 ` He, Jia
2018-08-07 7:56 ` Gavin Hu
2018-08-08 3:07 ` Jerin Jacob
2018-08-08 7:23 ` [dpdk-dev] [dpdk-stable] " Thomas Monjalon
2018-09-17 7:47 ` [dpdk-dev] [PATCH v3 1/3] app/testpmd: show errno along with flow API errors Gavin Hu
2018-09-17 7:47 ` [dpdk-dev] [PATCH v3 2/3] net/i40e: remove invalid comment Gavin Hu
2018-09-17 8:25 ` Gavin Hu (Arm Technology China)
2018-09-17 7:47 ` [dpdk-dev] [PATCH v3 3/3] doc: add cross compile part for sample applications Gavin Hu
2018-09-17 9:48 ` Jerin Jacob
2018-09-17 10:28 ` Gavin Hu (Arm Technology China)
2018-09-17 10:34 ` Jerin Jacob
2018-09-17 10:55 ` Gavin Hu (Arm Technology China)
2018-09-17 10:49 ` [dpdk-dev] [PATCH v4] " Gavin Hu
2018-09-17 10:53 ` [dpdk-dev] [PATCH v5] " Gavin Hu
2018-09-18 11:00 ` Jerin Jacob
2018-09-19 0:33 ` [dpdk-dev] [PATCH v6] " Gavin Hu
2018-09-17 8:11 ` [dpdk-dev] [PATCH v4 1/4] bus/fslmc: fix undefined reference of memsegs Gavin Hu
2018-09-17 8:11 ` [dpdk-dev] [PATCH v4 2/4] ring: read tail using atomic load Gavin Hu
2018-09-20 6:41 ` Jerin Jacob
2018-09-25 9:26 ` Gavin Hu (Arm Technology China)
2018-09-17 8:11 ` [dpdk-dev] [PATCH v4 3/4] ring: synchronize the load and store of the tail Gavin Hu
2018-09-17 8:11 ` [dpdk-dev] [PATCH v4 4/4] ring: move the atomic load of head above the loop Gavin Hu
2018-10-27 14:21 ` [dpdk-dev] [dpdk-stable] " Thomas Monjalon
2018-09-17 8:17 ` [dpdk-dev] [PATCH v3 1/3] ring: read tail using atomic load Gavin Hu
2018-09-17 8:17 ` [dpdk-dev] [PATCH v3 2/3] ring: synchronize the load and store of the tail Gavin Hu
2018-09-26 9:29 ` Gavin Hu (Arm Technology China)
2018-09-26 9:59 ` Justin He
2018-09-29 10:57 ` Jerin Jacob
2018-10-17 6:29 ` [dpdk-dev] [PATCH 1/2] " Gavin Hu
2018-10-17 6:29 ` [dpdk-dev] [PATCH 2/2] ring: move the atomic load of head above the loop Gavin Hu
2018-10-17 6:35 ` [dpdk-dev] [PATCH 1/2] ring: synchronize the load and store of the tail Gavin Hu (Arm Technology China)
2018-10-27 14:39 ` Thomas Monjalon
2018-10-27 15:00 ` Jerin Jacob
2018-10-27 15:13 ` Thomas Monjalon
2018-10-27 15:34 ` Jerin Jacob
2018-10-27 15:48 ` Thomas Monjalon
2018-10-29 2:51 ` Gavin Hu (Arm Technology China)
2018-10-29 2:57 ` Gavin Hu (Arm Technology China)
2018-10-29 10:16 ` Jerin Jacob
2018-10-29 10:47 ` Thomas Monjalon
2018-10-29 11:10 ` Jerin Jacob
2018-11-03 20:12 ` Mattias Rönnblom
2018-11-05 21:51 ` Honnappa Nagarahalli
2018-11-06 11:03 ` Mattias Rönnblom
2018-10-31 3:35 ` [dpdk-dev] [PATCH v2 0/2] rte ring c11 bug fix and optimization Gavin Hu
2018-10-31 10:26 ` [dpdk-dev] [PATCH v3 0/2] ring library with c11 memory model " Gavin Hu
2018-10-31 16:58 ` Thomas Monjalon
2018-11-01 9:53 ` [dpdk-dev] [PATCH v4 1/2] ring: synchronize the load and store of the tail Gavin Hu
2018-11-01 9:53 ` [dpdk-dev] [PATCH v4 2/2] ring: move the atomic load of head above the loop Gavin Hu
2018-11-01 17:26 ` Stephen Hemminger
2018-11-02 0:53 ` Gavin Hu (Arm Technology China)
2018-11-02 4:30 ` Honnappa Nagarahalli
2018-11-02 7:15 ` Gavin Hu (Arm Technology China)
2018-11-02 9:36 ` Thomas Monjalon
2018-11-02 11:23 ` Gavin Hu (Arm Technology China)
2018-10-31 10:26 ` [dpdk-dev] [PATCH v3 1/2] ring: synchronize the load and store of the tail Gavin Hu
2018-10-31 22:07 ` Stephen Hemminger
2018-11-01 9:56 ` Gavin Hu (Arm Technology China)
2018-10-31 10:26 ` [dpdk-dev] [PATCH v3 2/2] ring: move the atomic load of head above the loop Gavin Hu
2018-10-31 3:35 ` [dpdk-dev] [PATCH v2 1/2] ring: synchronize the load and store of the tail Gavin Hu
2018-10-31 3:35 ` [dpdk-dev] [PATCH v2 2/2] ring: move the atomic load of head above the loop Gavin Hu
2018-10-31 9:36 ` Thomas Monjalon
2018-10-31 10:27 ` Gavin Hu (Arm Technology China)
2018-11-01 9:53 ` [dpdk-dev] [PATCH v4 0/2] ring library with c11 memory model bug fix and optimization Gavin Hu
2018-11-02 11:21 ` [dpdk-dev] [PATCH v5 " Gavin Hu
2018-11-02 11:21 ` [dpdk-dev] [PATCH v5 1/2] ring: synchronize the load and store of the tail Gavin Hu
2018-11-05 9:30 ` Olivier Matz
2018-11-02 11:21 ` [dpdk-dev] [PATCH v5 2/2] ring: move the atomic load of head above the loop Gavin Hu
2018-11-02 11:43 ` Bruce Richardson
2018-11-03 1:19 ` Gavin Hu (Arm Technology China)
2018-11-03 9:34 ` Honnappa Nagarahalli
2018-11-05 13:17 ` [dpdk-dev] [dpdk-stable] " Thomas Monjalon
2018-11-05 13:41 ` Jerin Jacob
2018-11-05 9:44 ` [dpdk-dev] " Olivier Matz
2018-11-05 13:36 ` [dpdk-dev] [dpdk-stable] " Thomas Monjalon
2018-09-17 8:17 ` [dpdk-dev] [PATCH v3 3/3] " Gavin Hu
2018-09-26 9:29 ` Gavin Hu (Arm Technology China)
2018-09-26 10:06 ` Justin He
2018-09-29 7:19 ` Stephen Hemminger
2018-09-29 10:59 ` Jerin Jacob
2018-09-26 9:29 ` [dpdk-dev] [PATCH v3 1/3] ring: read tail using atomic load Gavin Hu (Arm Technology China)
2018-09-26 10:09 ` Justin He
2018-09-29 10:48 ` Jerin Jacob
2018-10-05 0:47 ` Gavin Hu (Arm Technology China)
2018-10-05 8:21 ` Ananyev, Konstantin
2018-10-05 11:15 ` Ola Liljedahl
2018-10-05 11:36 ` Ola Liljedahl
2018-10-05 13:44 ` Ananyev, Konstantin
2018-10-05 14:21 ` Ola Liljedahl
2018-10-05 15:11 ` Honnappa Nagarahalli
2018-10-05 17:07 ` Jerin Jacob
2018-10-05 18:05 ` Ola Liljedahl
2018-10-05 20:06 ` Honnappa Nagarahalli
2018-10-05 20:17 ` Ola Liljedahl
2018-10-05 20:29 ` Honnappa Nagarahalli
2018-10-05 20:34 ` Ola Liljedahl
2018-10-06 7:41 ` Jerin Jacob
2018-10-06 19:44 ` Ola Liljedahl
2018-10-06 19:59 ` Ola Liljedahl
2018-10-07 4:02 ` Jerin Jacob
2018-10-07 20:11 ` Ola Liljedahl
2018-10-07 20:44 ` Ola Liljedahl
2018-10-08 6:06 ` Jerin Jacob
2018-10-08 9:22 ` Ola Liljedahl
2018-10-08 10:00 ` Jerin Jacob
2018-10-08 10:25 ` Ola Liljedahl
2018-10-08 10:33 ` Gavin Hu (Arm Technology China)
2018-10-08 10:39 ` Ola Liljedahl
2018-10-08 10:41 ` Gavin Hu (Arm Technology China)
2018-10-08 10:49 ` Jerin Jacob
2018-10-10 6:28 ` Gavin Hu (Arm Technology China)
2018-10-10 19:26 ` Honnappa Nagarahalli [this message]
2018-10-08 10:46 ` Jerin Jacob
2018-10-08 11:21 ` Ola Liljedahl
2018-10-08 11:50 ` Jerin Jacob
2018-10-08 11:59 ` Ola Liljedahl
2018-10-08 12:05 ` Jerin Jacob
2018-10-08 12:20 ` Jerin Jacob
2018-10-08 12:30 ` Ola Liljedahl
2018-10-09 8:53 ` Olivier Matz
2018-10-09 3:16 ` Honnappa Nagarahalli
2018-10-08 14:43 ` Bruce Richardson
2018-10-08 14:46 ` Ola Liljedahl
2018-10-08 15:45 ` Ola Liljedahl
2018-10-08 5:27 ` Honnappa Nagarahalli
2018-10-08 10:01 ` Ola Liljedahl
2018-10-27 14:17 ` [dpdk-dev] [dpdk-stable] " Thomas Monjalon
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=AM6PR08MB3672EABF141AF2313C4A689298E00@AM6PR08MB3672.eurprd08.prod.outlook.com \
--to=honnappa.nagarahalli@arm.com \
--cc=Gavin.Hu@arm.com \
--cc=Ola.Liljedahl@arm.com \
--cc=Steve.Capper@arm.com \
--cc=dev@dpdk.org \
--cc=jerin.jacob@caviumnetworks.com \
--cc=konstantin.ananyev@intel.com \
--cc=nd@arm.com \
--cc=stable@dpdk.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).