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Biederman) To: Christian Brauner Cc: davem@davemloft.net, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, avagin@virtuozzo.com, ktkhai@virtuozzo.com, serge@hallyn.com, gregkh@linuxfoundation.org References: <20180418152106.18519-1-christian.brauner@ubuntu.com> <20180418152106.18519-3-christian.brauner@ubuntu.com> Date: Wed, 18 Apr 2018 11:55:52 -0500 In-Reply-To: <20180418152106.18519-3-christian.brauner@ubuntu.com> (Christian Brauner's message of "Wed, 18 Apr 2018 17:21:06 +0200") Message-ID: <874lk8wj1j.fsf@xmission.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-XM-SPF: eid=1f8qOQ-0005hU-C7;;;mid=<874lk8wj1j.fsf@xmission.com>;;;hst=in01.mta.xmission.com;;;ip=97.119.174.25;;;frm=ebiederm@xmission.com;;;spf=neutral X-XM-AID: U2FsdGVkX18MZjt54lassqLMpD9aP7nGReHi1SqMpBA= X-SA-Exim-Connect-IP: 97.119.174.25 X-SA-Exim-Mail-From: ebiederm@xmission.com X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on sa02.xmission.com X-Spam-Level: X-Spam-Status: No, score=0.5 required=8.0 tests=ALL_TRUSTED,BAYES_50, DCC_CHECK_NEGATIVE,T_TM2_M_HEADER_IN_MSG,T_TooManySym_01,XMSubLong autolearn=disabled version=3.4.0 X-Spam-Report: * -1.0 ALL_TRUSTED Passed through trusted hosts only via SMTP * 0.7 XMSubLong Long Subject * 0.0 T_TM2_M_HEADER_IN_MSG BODY: No description available. * 0.8 BAYES_50 BODY: Bayes spam probability is 40 to 60% * [score: 0.4993] * -0.0 DCC_CHECK_NEGATIVE Not listed in DCC * [sa02 1397; Body=1 Fuz1=1 Fuz2=1] * 0.0 T_TooManySym_01 4+ unique symbols in subject X-Spam-DCC: XMission; sa02 1397; Body=1 Fuz1=1 Fuz2=1 X-Spam-Combo: ;Christian Brauner X-Spam-Relay-Country: X-Spam-Timing: total 304 ms - load_scoreonly_sql: 0.07 (0.0%), signal_user_changed: 3.0 (1.0%), b_tie_ro: 2.0 (0.7%), parse: 1.14 (0.4%), extract_message_metadata: 23 (7.5%), get_uri_detail_list: 0.90 (0.3%), tests_pri_-1000: 8 (2.7%), tests_pri_-950: 2.00 (0.7%), tests_pri_-900: 1.67 (0.5%), tests_pri_-400: 20 (6.7%), check_bayes: 19 (6.1%), b_tokenize: 7 (2.2%), b_tok_get_all: 4.6 (1.5%), b_comp_prob: 2.6 (0.9%), b_tok_touch_all: 2.2 (0.7%), b_finish: 0.81 (0.3%), tests_pri_0: 228 (75.0%), check_dkim_signature: 0.78 (0.3%), check_dkim_adsp: 5 (1.7%), tests_pri_500: 11 (3.7%), rewrite_mail: 0.00 (0.0%) Subject: Re: [PATCH net-next 2/2] netns: isolate seqnums to use per-netns locks X-Spam-Flag: No X-SA-Exim-Version: 4.2.1 (built Thu, 05 May 2016 13:38:54 -0600) X-SA-Exim-Scanned: Yes (on in01.mta.xmission.com) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Christian Brauner writes: > Now that it's possible to have a different set of uevents in different > network namespaces, per-network namespace uevent sequence numbers are > introduced. This increases performance as locking is now restricted to the > network namespace affected by the uevent rather than locking > everything. Numbers please. I personally expect that the netlink mc_list issues will swamp any benefit you get from this. Eric