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Date: Wed, 1 Jun 2022 18:56:50 +0100 Message-Id: <5F09745B-3A68-4E27-B5B5-644605A485ED@quintile.net> References: <83022bf9-96d9-d33c-d670-7b90961d61d6@posixcafe.org> In-Reply-To: <83022bf9-96d9-d33c-d670-7b90961d61d6@posixcafe.org> To: 9fans <9fans@9fans.net> X-Mailer: iPhone Mail (19F77) X-BlackCat-Spam-Score: 14 Topicbox-Policy-Reasoning: allow: sender is a member Topicbox-Message-UUID: 3d247584-e1d4-11ec-b76a-f1418dacd127 Archived-At: =?UTF-8?B?PGh0dHBzOi8vOWZhbnMudG9waWNib3guY29tL2dyb3Vwcy85?= =?UTF-8?B?ZmFucy9UNzY5ODU0ZmFmZDJiN2QzNS1NNDVmZGM2NjNlZjI3NWU4N2M5Yjc3?= =?UTF-8?B?ZjM3Pg==?= List-Help: List-Id: "9fans" <9fans.9fans.net> List-Post: List-Software: Topicbox v0 List-Subscribe: Precedence: list Reply-To: 9fans <9fans@9fans.net> List-Unsubscribe: , Topicbox-Delivery-ID: 2:9fans:437d30aa-c441-11e9-8a57-d036212d11b0:522be890-2105-11eb-b15e-8d699134e1fa:M45fdc663ef275e87c9b77f37:1:b5d35H-LYx39tzsC2SHo4yon0FyNMdgm3hGrsbM6Sbg for performance testing why not copy from ramfs on one machine to ramfs on = another? the suggestion from a 9con passim was to have fossil/cwfs/hjfs etc add a Qi= d type flag to files indicating they are from backing store (QTSTABLE ?)and= thus may be copied in parallel. devices and synthetic would not normally h= ave this flag forcing the read or write be sequential. you could even make the file server set this flag only on files that have n= ot changed in X days, and thus the contents are more likely to be stable (i= dea from the SRC package from DEC) perhaps i missed something but i always thought the idea had legs. -Steve > On 1 Jun 2022, at 4:56 pm, Jacob Moody wrote: >=20 > =EF=BB=BFhjfs is not exactly known for it's speed[0]. Running a cwfs > without a worm[1] is likely a more interesting comparison. >=20 > I also would recommend using kvik's clone[2] for copying > in parallel. >=20 > Would be curious how that stacks up. >=20 > Thanks, > moody >=20 > [0] http://fqa.9front.org/fqa4.html#4.3.6 > [1] http://fqa.9front.org/fqa4.html#4.3.6.1 > [2] https://git.sr.ht/~kvik/clone ------------------------------------------ 9fans: 9fans Permalink: https://9fans.topicbox.com/groups/9fans/T769854fafd2b7d35-M45fdc= 663ef275e87c9b77f37 Delivery options: https://9fans.topicbox.com/groups/9fans/subscription