From: Eric Blake <eblake@redhat.com>
To: Markus Armbruster <armbru@redhat.com>, qemu-devel@nongnu.org
Cc: kwolf@redhat.com, berrange@redhat.com, zxq_yx_007@163.com,
kraxel@redhat.com, pbonzini@redhat.com,
marcandre.lureau@redhat.com
Subject: Re: [PATCH 05/11] test-util-sockets: Synchronize properly, don't sleep(1)
Date: Thu, 29 Oct 2020 13:54:51 -0500 [thread overview]
Message-ID: <bbac60a2-c4d9-f3c8-dcb4-2822b5b0b9ba@redhat.com> (raw)
In-Reply-To: <20201029133833.3450220-6-armbru@redhat.com>
On 10/29/20 8:38 AM, Markus Armbruster wrote:
> The abstract sockets test spawns a thread to listen and a accept, and
s/and a/and/
> a second one to connect, with a sleep(1) in between to "ensure" the
> former is listening when the latter tries to connect. Review fail.
> Risks spurious test failure, say when a heavily loaded machine doesn't
> schedule the first thread quickly enough. It's also slow.
>
> Listen and accept in the main thread, and start the connect thread in
> between. Look ma, no sleep! Run time drops from 2s wall clock to a
> few milliseconds.
>
> Signed-off-by: Markus Armbruster <armbru@redhat.com>
> ---
> tests/test-util-sockets.c | 39 +++++++++++++--------------------------
> 1 file changed, 13 insertions(+), 26 deletions(-)
>
Reviewed-by: Eric Blake <eblake@redhat.com>
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3226
Virtualization: qemu.org | libvirt.org
next prev parent reply other threads:[~2020-10-29 18:57 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-29 13:38 [PATCH 00/11] sockets: Attempt to drain the abstract socket swamp Markus Armbruster
2020-10-29 13:38 ` [PATCH 01/11] test-util-sockets: Plug file descriptor leak Markus Armbruster
2020-10-29 17:59 ` Eric Blake
2020-10-29 13:38 ` [PATCH 02/11] test-util-sockets: Correct to set has_abstract, has_tight Markus Armbruster
2020-10-29 18:36 ` Eric Blake
2020-10-29 13:38 ` [PATCH 03/11] test-util-sockets: Clean up SocketAddress construction Markus Armbruster
2020-10-29 18:43 ` Eric Blake
2020-10-30 9:36 ` Daniel P. Berrangé
2020-10-30 14:06 ` Markus Armbruster
2020-10-29 13:38 ` [PATCH 04/11] test-util-sockets: Factor out test_socket_unix_abstract_one() Markus Armbruster
2020-10-29 18:52 ` Eric Blake
2020-10-29 13:38 ` [PATCH 05/11] test-util-sockets: Synchronize properly, don't sleep(1) Markus Armbruster
2020-10-29 18:54 ` Eric Blake [this message]
2020-10-30 6:40 ` Markus Armbruster
2020-10-29 13:38 ` [PATCH 06/11] test-util-sockets: Test the complete abstract socket matrix Markus Armbruster
2020-10-29 19:19 ` Eric Blake
2020-10-30 9:33 ` Daniel P. Berrangé
2020-10-30 14:14 ` Markus Armbruster
2020-10-29 13:38 ` [PATCH 07/11] sockets: Fix default of UnixSocketAddress member @tight Markus Armbruster
2020-10-29 17:39 ` Paolo Bonzini
2020-10-29 18:05 ` Paolo Bonzini
2020-10-30 6:58 ` Markus Armbruster
2020-10-29 19:34 ` Eric Blake
2020-10-30 6:54 ` Markus Armbruster
2020-10-29 13:38 ` [PATCH 08/11] sockets: Fix socket_sockaddr_to_address_unix() for abstract sockets Markus Armbruster
2020-10-29 17:47 ` Paolo Bonzini
2020-10-30 8:56 ` Markus Armbruster
2020-10-29 19:38 ` Eric Blake
2020-10-30 9:04 ` Markus Armbruster
2020-10-30 12:39 ` Eric Blake
2020-10-29 13:38 ` [PATCH 09/11] char-socket: Fix qemu_chr_socket_address() " Markus Armbruster
2020-10-29 19:41 ` Eric Blake
2020-10-30 9:09 ` Markus Armbruster
2020-10-29 13:38 ` [PATCH 10/11] sockets: Bypass "replace empty @path" for abstract unix sockets Markus Armbruster
2020-10-29 19:42 ` Eric Blake
2020-10-29 13:38 ` [PATCH 11/11] sockets: Make abstract UnixSocketAddress depend on CONFIG_LINUX Markus Armbruster
2020-10-29 19:54 ` Eric Blake
2020-10-30 9:25 ` Markus Armbruster
2020-10-29 13:53 ` [PATCH 00/11] sockets: Attempt to drain the abstract socket swamp Marc-André Lureau
2020-10-30 10:11 ` Markus Armbruster
2020-10-30 10:20 ` Daniel P. Berrangé
2020-11-02 8:44 ` Markus Armbruster
2020-11-02 8:57 ` Paolo Bonzini
2020-11-02 9:18 ` Daniel P. Berrangé
2020-11-02 9:59 ` Markus Armbruster
2020-11-02 10:02 ` Daniel P. Berrangé
2020-11-02 11:58 ` Markus Armbruster
2020-10-29 18:06 ` Paolo Bonzini
2020-10-30 10:12 ` Markus Armbruster
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