From: "Elo, Matias (Nokia - FI/Espoo)" <matias.elo@nokia.com>
To: "Van Haaren, Harry" <harry.van.haaren@intel.com>
Cc: Jerin Jacob <jerin.jacob@caviumnetworks.com>,
"dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] eventdev: method for finding out unlink status
Date: Wed, 5 Sep 2018 07:49:13 +0000 [thread overview]
Message-ID: <285D18AA-EC23-4C04-824A-726F20681C61@nokia.com> (raw)
In-Reply-To: <20180810173510.GA6835@jerin>
>>
>> I'm not sure I understand the issue here.
>> Is anybody suggesting to make unlink() blocking?
>>
>> For certain PMDs, perhaps it must be a synchronous handled unlink().
>> For other PMDs (eg event/sw) there are multiple threads involved,
>> so it must be async. Hence, APIs should be async to avoid blocking the caller.
>>
>> With an async API, if you don't want the async behaviuor, it is
>> easy to build the sync version: call it in a loop, optionally with a delay().
>
> Correct. My point was, rte_event_port_unlink() can be blocking as it
> is a slow path API(does not really matter how long it waits).
> If you think, it can be called in fastpath and/or application can
> leverage some cpu cycles on completing the async call then you can add
> at the cost of new API unlinks_in_progress() and make sure to update the documentation
> about unlink() that it can be async call(currently it is documented as a sync
> call).
Did you come to an agreement how to solve this issue? Any solution (e.g. make
rte_event_port_unlink() blocking with SW eventdev) would be welcomed since this
issue is currently blocking my work with eventdev.
next prev parent reply other threads:[~2018-09-05 7:49 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-30 6:39 Elo, Matias (Nokia - FI/Espoo)
2018-07-30 7:54 ` Jerin Jacob
2018-07-30 9:17 ` Elo, Matias (Nokia - FI/Espoo)
2018-07-30 9:29 ` Jerin Jacob
2018-07-30 9:38 ` Van Haaren, Harry
2018-07-30 10:28 ` Elo, Matias (Nokia - FI/Espoo)
2018-07-30 10:36 ` Jerin Jacob
2018-07-30 13:36 ` Elo, Matias (Nokia - FI/Espoo)
2018-07-30 14:26 ` Jerin Jacob
2018-07-31 8:09 ` Elo, Matias (Nokia - FI/Espoo)
2018-07-31 8:31 ` Jerin Jacob
2018-07-31 9:27 ` Elo, Matias (Nokia - FI/Espoo)
2018-08-08 10:05 ` Elo, Matias (Nokia - FI/Espoo)
2018-08-09 13:14 ` Van Haaren, Harry
2018-08-09 14:18 ` Jerin Jacob
2018-08-10 14:24 ` Elo, Matias (Nokia - FI/Espoo)
2018-08-10 14:52 ` Jerin Jacob
2018-08-10 16:55 ` Van Haaren, Harry
2018-08-10 17:35 ` Jerin Jacob
2018-09-05 7:49 ` Elo, Matias (Nokia - FI/Espoo) [this message]
2018-09-12 15:17 ` Van Haaren, Harry
2018-07-30 15:32 ` Liang, Ma
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=285D18AA-EC23-4C04-824A-726F20681C61@nokia.com \
--to=matias.elo@nokia.com \
--cc=dev@dpdk.org \
--cc=harry.van.haaren@intel.com \
--cc=jerin.jacob@caviumnetworks.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
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).