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Sun, 3 Jan 2021 18:51:04 -0500 (EST) X-Mailer: MessagingEngine.com Webmail Interface User-Agent: Cyrus-JMAP/3.3.1-61-gb52c239-fm-20201210.001-gb52c2396 Mime-Version: 1.0 Message-Id: <3e07aed0-6865-460a-9433-826cf173bb85@www.fastmail.com> In-Reply-To: <86tus46ujm.fsf@cmarib.ramside> References: <86tus46ujm.fsf@cmarib.ramside> Date: Sun, 03 Jan 2021 23:51:04 +0000 From: "Ethan Gardener" To: 9fans <9fans@9fans.net> Subject: Re: [9fans] Dual dialing/forking sessions to increase 9P throughput Content-Type: text/plain; charset="UTF-8" Topicbox-Policy-Reasoning: allow: sender is a member Topicbox-Message-UUID: 9a93ceea-4e1e-11eb-a2c4-9b79c60a8773 Archived-At: =?UTF-8?B?PGh0dHBzOi8vOWZhbnMudG9waWNib3guY29tL2dyb3Vwcy85?= =?UTF-8?B?ZmFucy9UZTY5YmIwZmNlMGYwZmZhZi1NNTlhYzc4MmMwZjU4YTBjYzFlZWM4?= =?UTF-8?B?YzEwPg==?= List-Help: List-Id: "9fans" <9fans.9fans.net> List-Post: List-Software: Topicbox v0 List-Subscribe: Precedence: list Reply-To: 9fans <9fans@9fans.net> Content-Transfer-Encoding: quoted-printable List-Unsubscribe: , Topicbox-Delivery-ID: 2:9fans:437d30aa-c441-11e9-8a57-d036212d11b0:522be890-2105-11eb-b15e-8d699134e1fa:M59ac782c0f58a0cc1eec8c10:1:vXKdQV6QCBtgQcG3t6GZjtpgjD9YcR5eDPHjA3r0I7Q > The idea, basically, is to use an open flag (OJUMBO) to signal that two > connections to the same server should be attempted.=20=20 What's the advantage over fcp(1)? 9p can have numerous requests "in flight"= at once to work around latency issues, but of all the user programs, fcp i= s probably the only one which takes advantage of this. > If a second > connection can be established, it is used for normal 9P transactions, > while the first connection is used for large ("jumbo") writes. How large is "jumbo"? I believe all the user programs have 8KB buffers at p= resent; are you going to change them all? I'm not negative about this; just raising the points. ------------------------------------------ 9fans: 9fans Permalink: https://9fans.topicbox.com/groups/9fans/Te69bb0fce0f0ffaf-M59ac7= 82c0f58a0cc1eec8c10 Delivery options: https://9fans.topicbox.com/groups/9fans/subscription