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From: Kees Cook <keescook@chromium.org>
To: Paul Moore <paul@paul-moore.com>
Cc: "Lennart Poettering" <lennart@poettering.net>,
	"Alexei Starovoitov" <alexei.starovoitov@gmail.com>,
	"zhujianwei (C)" <zhujianwei7@huawei.com>,
	"bpf@vger.kernel.org" <bpf@vger.kernel.org>,
	"linux-security-module@vger.kernel.org"
	<linux-security-module@vger.kernel.org>,
	Hehuazhen <hehuazhen@huawei.com>,
	"Christian Ehrhardt" <christian.ehrhardt@canonical.com>,
	"Zbigniew Jędrzejewski-Szmek" <zbyszek@in.waw.pl>,
	"Tom Hromatka" <tom.hromatka@oracle.com>
Subject: Re: new seccomp mode aims to improve performance
Date: Tue, 2 Jun 2020 11:39:43 -0700
Message-ID: <202006021138.6E2073803@keescook> (raw)
In-Reply-To: <CAHC9VhShd2GLqei6MSREr_vzeVXNcObdVVgvhj1WP7_Ob2C3ag@mail.gmail.com>

On Tue, Jun 02, 2020 at 11:03:31AM -0400, Paul Moore wrote:
> Perhaps others will clarify, but from my reading of this thread there
> is a performance advantage to be gained by limiting the number of
> seccomp filters installed for a given process.

Generally speaking, yes, though obviously the size and layout of a single
filter (i.e. is it a balanced tree?) will still impact the overhead.

-- 
Kees Cook

  reply index

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-29 12:48 zhujianwei (C)
2020-05-29 15:43 ` Alexei Starovoitov
2020-05-29 16:09   ` Kees Cook
2020-05-29 17:31     ` Alexei Starovoitov
2020-05-29 19:27     ` Kees Cook
2020-05-31 17:19       ` Alexei Starovoitov
2020-06-01 18:16         ` Kees Cook
2020-06-01  2:08       ` 答复: " zhujianwei (C)
2020-06-01  3:30         ` Alexei Starovoitov
2020-06-02  2:42           ` 答复: " zhujianwei (C)
2020-06-02  3:24             ` Alexei Starovoitov
2020-06-02 11:13               ` 答复: " zhujianwei (C)
2020-06-02 11:34               ` zhujianwei (C)
2020-06-02 18:32                 ` Kees Cook
2020-06-03  4:51                   ` 答复: " zhujianwei (C)
2020-06-01 10:11       ` Lennart Poettering
2020-06-01 12:32         ` Paul Moore
2020-06-02 12:53           ` Lennart Poettering
2020-06-02 15:03             ` Paul Moore
2020-06-02 18:39               ` Kees Cook [this message]
2020-06-01 18:21         ` Kees Cook
2020-06-02 12:44           ` Lennart Poettering
2020-06-02 18:37             ` Kees Cook
2020-06-16  6:00             ` Kees Cook

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