DPDK patches and discussions
 help / color / mirror / Atom feed
From: Pavan Nikhilesh Bhagavatula <pbhagavatula@marvell.com>
To: Thomas Monjalon <thomas@monjalon.net>
Cc: Ori Kam <orika@mellanox.com>,
	Jerin Jacob Kollanukkaran <jerinj@marvell.com>,
	"xiang.w.wang@intel.com" <xiang.w.wang@intel.com>,
	"dev@dpdk.org" <dev@dpdk.org>,
	Shahaf Shuler <shahafs@mellanox.com>,
	"hemant.agrawal@nxp.com" <hemant.agrawal@nxp.com>,
	Opher Reviv <opher@mellanox.com>,
	Alex Rosenbaum <alexr@mellanox.com>,
	Dovrat Zifroni <dovrat@marvell.com>,
	Prasun Kapoor <pkapoor@marvell.com>,
	"nipun.gupta@nxp.com" <nipun.gupta@nxp.com>,
	"bruce.richardson@intel.com" <bruce.richardson@intel.com>,
	"yang.a.hong@intel.com" <yang.a.hong@intel.com>,
	"harry.chang@intel.com" <harry.chang@intel.com>,
	"gu.jian1@zte.com.cn" <gu.jian1@zte.com.cn>,
	"shanjiangh@chinatelecom.cn" <shanjiangh@chinatelecom.cn>,
	"zhangy.yun@chinatelecom.cn" <zhangy.yun@chinatelecom.cn>,
	"lixingfu@huachentel.com" <lixingfu@huachentel.com>,
	"wushuai@inspur.com" <wushuai@inspur.com>,
	"yuyingxia@yxlink.com" <yuyingxia@yxlink.com>,
	"fanchenggang@sunyainfo.com" <fanchenggang@sunyainfo.com>,
	"davidfgao@tencent.com" <davidfgao@tencent.com>,
	"liuzhong1@chinaunicom.cn" <liuzhong1@chinaunicom.cn>,
	"zhaoyong11@huawei.com" <zhaoyong11@huawei.com>,
	"oc@yunify.com" <oc@yunify.com>,
	"jim@netgate.com" <jim@netgate.com>,
	"hongjun.ni@intel.com" <hongjun.ni@intel.com>,
	"j.bromhead@titan-ic.com" <j.bromhead@titan-ic.com>,
	"deri@ntop.org" <deri@ntop.org>,
	"fc@napatech.com" <fc@napatech.com>,
	"arthur.su@lionic.com" <arthur.su@lionic.com>,
	"david.marchand@redhat.com" <david.marchand@redhat.com>
Subject: Re: [dpdk-dev] [EXT] [PATCH v1 4/4] regexdev: implement regex rte level functions
Date: Mon, 6 Apr 2020 13:50:09 +0000
Message-ID: <CY4PR1801MB18636052DCE2BB25C9262751DEC20@CY4PR1801MB1863.namprd18.prod.outlook.com> (raw)
In-Reply-To: <1620573.TTEOE9XjLl@xps>



>-----Original Message-----
>From: Thomas Monjalon <thomas@monjalon.net>
>Sent: Monday, April 6, 2020 7:07 PM
>To: Pavan Nikhilesh Bhagavatula <pbhagavatula@marvell.com>
>Cc: Ori Kam <orika@mellanox.com>; Jerin Jacob Kollanukkaran
><jerinj@marvell.com>; xiang.w.wang@intel.com; dev@dpdk.org;
>Shahaf Shuler <shahafs@mellanox.com>; hemant.agrawal@nxp.com;
>Opher Reviv <opher@mellanox.com>; Alex Rosenbaum
><alexr@mellanox.com>; Dovrat Zifroni <dovrat@marvell.com>; Prasun
>Kapoor <pkapoor@marvell.com>; nipun.gupta@nxp.com;
>bruce.richardson@intel.com; yang.a.hong@intel.com;
>harry.chang@intel.com; gu.jian1@zte.com.cn;
>shanjiangh@chinatelecom.cn; zhangy.yun@chinatelecom.cn;
>lixingfu@huachentel.com; wushuai@inspur.com;
>yuyingxia@yxlink.com; fanchenggang@sunyainfo.com;
>davidfgao@tencent.com; liuzhong1@chinaunicom.cn;
>zhaoyong11@huawei.com; oc@yunify.com; jim@netgate.com;
>hongjun.ni@intel.com; j.bromhead@titan-ic.com; deri@ntop.org;
>fc@napatech.com; arthur.su@lionic.com; david.marchand@redhat.com
>Subject: Re: [EXT] [PATCH v1 4/4] regexdev: implement regex rte level
>functions
>
>06/04/2020 15:22, Pavan Nikhilesh Bhagavatula:
>> >06/04/2020 14:33, Pavan Nikhilesh Bhagavatula:
>> >> >> From: Pavan Nikhilesh Bhagavatula
>> >> >> > >+uint16_t
>> >> >> > >+rte_regexdev_enqueue_burst(uint8_t dev_id, uint16_t
>> >qp_id,
>> >> >> > >+			   struct rte_regex_ops **ops, uint16_t
>> >nb_ops)
>> >> >> > >+{
>> >> >> > >+	return regex_devices[dev_id]-
>> >> >> > >>enqueue(regex_devices[dev_id], qp_id,
>> >> >> > >+					      ops, nb_ops);
>> >> >> > >+}
>> >> >> >
>> >> >> > Move these functions to .h in-lining them.
>> >> >> > Also, please add debug checks @see
>> >> >rte_eth_rx_burst/rte_eth_tx_burst.
>> >> >>
>> >> >> O.K will update.
>> >> >
>> >> >In general, inlining is a pain for ABI compatibility.
>> >> >Please inline only if the gain is very significant.
>> >> >
>> >>
>> >> The performance gain mostly comes from hoisting
>> >`regex_devices[dev_id]` load above the
>> >> poll loop.
>> >> Since, the performance measurement application is still in pipeline
>> >and regexdev would be
>> >> experimental for next couple of releases I suggest inlining it now
>and
>> >worrying about ABI when
>> >> experimental tag needs to be removed.
>> >
>> >No, we must worry about ABI from the beginning.
>>
>> I though performance was the primary objective :-).
>
>It is.
>
>> >> We can follow the same path as done by ethdev
>> >[https://urldefense.proofpoint.com/v2/url?u=https-
>3A__www.mail-
>> >2Darchive.com_dev-
>>
>>40dpdk.org_msg142392.html&d=DwICAg&c=nKjWec2b6R0mOyPaz7xt
>f
>> >Q&r=E3SgYMjtKCMVsB-fmvgGV3o-
>> >g_fjLhk5Pupi9ijohpc&m=7Gqb6WKmZV5uY3xa7FRVrRVDz8Usrsd-
>>
>>rDjIKr6CUQQ&s=sQo2Kx9fzTNXwiQ2Fzki3s5GSuiiAEzz2VtN68_KKXo&e
>=
>> >]
>> >
>> >ethdev is not an argument.
>>
>> What about ring? [https://urldefense.proofpoint.com/v2/url?u=http-
>3A__mails.dpdk.org_archives_dev_2020-
>2DApril_161506.html&d=DwICAg&c=nKjWec2b6R0mOyPaz7xtfQ&r=E3S
>gYMjtKCMVsB-fmvgGV3o-
>g_fjLhk5Pupi9ijohpc&m=u9gnM_YrOJDusN4yR8YUcUuUkri4tOjnHrQ0A
>Qd5zTw&s=uv6AQA-
>Zu7o6ugyhpGHLxFOk4SfEdkHfFGDmhzANRME&e= ]
>>
>> Why do we need to prove the same performance advantage using in-
>lining for datapath
>> critical functions again and again?
>
>Because every libraries have not the same usage and load.
>We should compare how much cycle is saved with inline vs
>how much cycles is, "in average", a regex burst?
>
>If you tell me regex processing is fast, OK, let's inline.
>

Regex processing speed would still be dependent on underlying device capabilities.

All we are trying to do is reduce the enqueue/dequeue completion time which would 
bring down the overall latency.

Thanks,
Pavan.

  reply	other threads:[~2020-04-06 13:50 UTC|newest]

Thread overview: 96+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-29  6:47 [dpdk-dev] [PATCH v1 0/4] add RegEx class Ori Kam
2020-03-29  6:47 ` [dpdk-dev] [PATCH v1 1/4] regexdev: introduce regexdev subsystem Ori Kam
2020-04-04 15:04   ` [dpdk-dev] [EXT] " Pavan Nikhilesh Bhagavatula
2020-04-05 15:03     ` Ori Kam
2020-03-29  6:47 ` [dpdk-dev] [PATCH v1 2/4] regexdev: add regex core h file Ori Kam
     [not found]   ` <DM5PR18MB221411AAEAFFA9D9F373292BC6C20@DM5PR18MB2214.namprd18.prod.outlook.com>
2020-04-07  8:53     ` Guy Kaneti
2020-04-07 16:16       ` Ori Kam
2020-04-07 16:27         ` Jerin Jacob
2020-04-08  7:37           ` Ori Kam
2020-04-08  7:48             ` Jerin Jacob
2020-04-08  8:31               ` Ori Kam
2020-04-08  8:38                 ` Jerin Jacob
2020-04-08  9:51                   ` Ori Kam
2020-03-29  6:47 ` [dpdk-dev] [PATCH v1 3/4] regexdev: add regexdev core functions Ori Kam
2020-04-04 15:01   ` [dpdk-dev] [EXT] " Pavan Nikhilesh Bhagavatula
2020-04-05 15:05     ` Ori Kam
2020-04-05 17:10       ` Pavan Nikhilesh Bhagavatula
2020-04-05 20:02         ` Ori Kam
2020-04-06 12:48           ` Pavan Nikhilesh Bhagavatula
2020-04-06 13:29             ` Thomas Monjalon
2020-04-06 13:38               ` Jerin Jacob
2020-04-06 19:11                 ` Ori Kam
2020-04-07  5:49                   ` Jerin Jacob
2020-04-07  6:46                     ` Ori Kam
2020-04-07  7:22                       ` Jerin Jacob
2020-04-07 12:27                     ` Thomas Monjalon
2020-04-07 12:54                       ` Jerin Jacob
2020-04-07 14:21                   ` Guy Kaneti
2020-04-07 16:28                     ` Ori Kam
2020-04-07 16:37                       ` Guy Kaneti
2020-04-08  6:52                         ` Ori Kam
2020-04-08  8:39               ` Ori Kam
2020-04-19 10:38                 ` Guy Kaneti
2020-04-22 21:36                   ` Ori Kam
2020-04-08  9:41             ` Ori Kam
2020-03-29  6:47 ` [dpdk-dev] [PATCH v1 4/4] regexdev: implement regex rte level functions Ori Kam
2020-04-04 14:27   ` [dpdk-dev] [EXT] " Pavan Nikhilesh Bhagavatula
2020-04-05 15:04     ` Ori Kam
2020-04-05 16:48       ` Pavan Nikhilesh Bhagavatula
2020-04-05 19:46         ` Ori Kam
2020-04-06 11:16       ` Thomas Monjalon
2020-04-06 12:33         ` Pavan Nikhilesh Bhagavatula
2020-04-06 13:14           ` Thomas Monjalon
2020-04-06 13:20             ` Jerin Jacob
2020-04-06 13:22             ` Pavan Nikhilesh Bhagavatula
2020-04-06 13:36               ` Thomas Monjalon
2020-04-06 13:50                 ` Pavan Nikhilesh Bhagavatula [this message]
2020-04-06 14:00                   ` Thomas Monjalon
2020-04-06 18:53                     ` Ori Kam
2020-04-04 13:06 ` [dpdk-dev] [EXT] [PATCH v1 0/4] add RegEx class Pavan Nikhilesh Bhagavatula
2020-04-05 15:03   ` Ori Kam
2020-04-17 12:43 ` [dpdk-dev] [PATCH v2 " Ori Kam
2020-04-17 12:43   ` [dpdk-dev] [PATCH v2 1/4] regexdev: introduce regexdev subsystem Ori Kam
2020-04-17 12:43   ` [dpdk-dev] [PATCH v2 2/4] regexdev: add regex core h file Ori Kam
2020-04-20 10:48     ` Guy Kaneti
2020-04-20 15:49       ` Ori Kam
2020-04-17 12:43   ` [dpdk-dev] [PATCH v2 3/4] regexdev: add regexdev core functions Ori Kam
2020-04-17 12:43   ` [dpdk-dev] [PATCH v2 4/4] regexdev: implement regex rte level functions Ori Kam
2020-04-21 11:12     ` Guy Kaneti
2020-04-21 11:20       ` Ori Kam
2020-04-21 11:36     ` Guy Kaneti
2020-04-22 20:33       ` Ori Kam
2020-05-07  9:45 ` [dpdk-dev] [PATCH v3 0/4] add RegEx class Ori Kam
2020-05-07  9:45   ` [dpdk-dev] [PATCH v3 1/4] regexdev: introduce regexdev subsystem Ori Kam
2020-06-21 11:18     ` Ori Kam
2020-06-30 19:57       ` Ori Kam
2020-05-07  9:45   ` [dpdk-dev] [PATCH v3 2/4] regexdev: add regex core h file Ori Kam
2020-06-03  6:47     ` [dpdk-dev] [EXT] " Guy Kaneti
2020-05-07  9:45   ` [dpdk-dev] [PATCH v3 3/4] regexdev: add regexdev core functions Ori Kam
2020-06-03  6:57     ` [dpdk-dev] [EXT] " Guy Kaneti
2020-05-07  9:45   ` [dpdk-dev] [PATCH v3 4/4] regexdev: implement regex rte level functions Ori Kam
2020-06-03  6:59     ` [dpdk-dev] [EXT] " Guy Kaneti
2020-06-28 13:45     ` Guy Kaneti
2020-06-28 14:10       ` Ori Kam
2020-05-24 20:24   ` [dpdk-dev] [PATCH v3 0/4] add RegEx class Ori Kam
2020-07-02  7:45 ` [dpdk-dev] [PATCH v4 " Ori Kam
2020-07-02  7:46   ` [dpdk-dev] [PATCH v4 1/4] regexdev: introduce regexdev subsystem Ori Kam
2020-07-05 21:18     ` Thomas Monjalon
2020-07-06  7:02       ` Ori Kam
2020-07-02  7:46   ` [dpdk-dev] [PATCH v4 2/4] regexdev: add regex core h file Ori Kam
2020-07-02  7:46   ` [dpdk-dev] [PATCH v4 3/4] regexdev: add regexdev core functions Ori Kam
2020-07-05 21:08     ` Thomas Monjalon
2020-07-06  6:07       ` Ori Kam
2020-07-06  7:03         ` Thomas Monjalon
2020-07-06  8:00           ` Bruce Richardson
2020-07-02  7:46   ` [dpdk-dev] [PATCH v4 4/4] regexdev: implement regex rte level functions Ori Kam
2020-07-05 21:21   ` [dpdk-dev] [PATCH v4 0/4] add RegEx class Thomas Monjalon
2020-07-06  7:03     ` Ori Kam
2020-07-06 17:36 ` [dpdk-dev] [PATCH v5 " Ori Kam
2020-07-06 17:36   ` [dpdk-dev] [PATCH v5 1/4] regexdev: introduce regexdev subsystem Ori Kam
2020-07-06 19:38     ` Thomas Monjalon
2020-09-11 12:46     ` David Marchand
2020-07-06 17:36   ` [dpdk-dev] [PATCH v5 2/4] regexdev: add regex core h file Ori Kam
2020-07-06 17:36   ` [dpdk-dev] [PATCH v5 3/4] regexdev: add regexdev core functions Ori Kam
2020-07-06 17:36   ` [dpdk-dev] [PATCH v5 4/4] regexdev: implement regex rte level functions Ori Kam
2020-07-06 22:30   ` [dpdk-dev] [PATCH v5 0/4] add RegEx class 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=CY4PR1801MB18636052DCE2BB25C9262751DEC20@CY4PR1801MB1863.namprd18.prod.outlook.com \
    --to=pbhagavatula@marvell.com \
    --cc=alexr@mellanox.com \
    --cc=arthur.su@lionic.com \
    --cc=bruce.richardson@intel.com \
    --cc=david.marchand@redhat.com \
    --cc=davidfgao@tencent.com \
    --cc=deri@ntop.org \
    --cc=dev@dpdk.org \
    --cc=dovrat@marvell.com \
    --cc=fanchenggang@sunyainfo.com \
    --cc=fc@napatech.com \
    --cc=gu.jian1@zte.com.cn \
    --cc=harry.chang@intel.com \
    --cc=hemant.agrawal@nxp.com \
    --cc=hongjun.ni@intel.com \
    --cc=j.bromhead@titan-ic.com \
    --cc=jerinj@marvell.com \
    --cc=jim@netgate.com \
    --cc=liuzhong1@chinaunicom.cn \
    --cc=lixingfu@huachentel.com \
    --cc=nipun.gupta@nxp.com \
    --cc=oc@yunify.com \
    --cc=opher@mellanox.com \
    --cc=orika@mellanox.com \
    --cc=pkapoor@marvell.com \
    --cc=shahafs@mellanox.com \
    --cc=shanjiangh@chinatelecom.cn \
    --cc=thomas@monjalon.net \
    --cc=wushuai@inspur.com \
    --cc=xiang.w.wang@intel.com \
    --cc=yang.a.hong@intel.com \
    --cc=yuyingxia@yxlink.com \
    --cc=zhangy.yun@chinatelecom.cn \
    --cc=zhaoyong11@huawei.com \
    /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

DPDK patches and discussions

This inbox may be cloned and mirrored by anyone:

	git clone --mirror https://inbox.dpdk.org/dev/0 dev/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 dev dev/ https://inbox.dpdk.org/dev \
		dev@dpdk.org
	public-inbox-index dev

Example config snippet for mirrors.
Newsgroup available over NNTP:
	nntp://inbox.dpdk.org/inbox.dpdk.dev


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git