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Save this post for later Not now           (https://cdn.sstatic.net/Sites/stackoverflow/Img/apple-touch-icon.png?v=c78bd457575a) (/questions/64629569/docker-bind-mount-directory-vs-named-volume-performance-comparison) Docker bind mount directory vs named volume performance comparison  (/questions/ask) Ask Question     (2020-11-01 07:24:53Z) Asked 4 years, 5 months ago  Modified (?lastactivity) (2025-01-10 00:58:44Z) 3 months ago  (Viewed 13,031 times) Viewed 13k times         This question shows research effort; it is useful and clear  (70:3:31e,16:a18b6135817911ce,10:1744248581,16:193ab337d336a9ac,8:64629569,254a429383b94ffb2a408343032ec70c1b6d6f82c0760bb37bb63b395728ab4e) 12  (This question does not show any research effort; it is unclear or not useful)    (70:3:31e,16:a061a01500f144fb,10:1744248581,16:e7e6be23c18ae427,8:64629569,3f7d54194623c798b2ddd9d1271778287ed3838dfe0b4b6afc8e15bee8563802)      Save this question.  (/posts/64629569/timeline)    Show activity on this post.    Is there any performance difference between following docker named volumes vs bind mounted volumes? If yes, how much numbers are we talking about? Docker volume example:  docker run -v mysql:/var/lib/mysql mysql:tag   Docker bind mount example:  docker run -v /path/to/mysql-data:/var/lib/mysql mysql:tag   These containers are used for mostly databases like elasticsearch, mysql and mongodb. Which one should I prefer?  (/questions/tagged/docker) (show questions tagged 'docker') docker  (/questions/tagged/containers) (show questions tagged 'containers') containers      (/q/64629569) (Short permalink to this question) Share  Share a link to this question     Copy link (https://creativecommons.org/licenses/by-sa/4.0/) (The current license for this post: CC BY-SA 4.0) CC BY-SA 4.0     (/posts/64629569/edit) () Improve this question  Follow (70:3:31e,16:40f1c06ca375a9b5,10:1744248581,16:e49b2acb98d80ac1,8:64629569,f5132d953f61fbaad323bfcb2d57eace843d4c9bd69c4415e37c89d18034258a)  Follow this question to receive notifications       (/posts/64629569/revisions) (show all edits to this post) edited (2020-11-01 23:46:57Z) Nov 1, 2020 at 23:46     Shinebayar G     asked (2020-11-01 07:24:53Z) Nov 1, 2020 at 7:24   (/users/9720375/shinebayar-g) (Shinebayar G's user avatar)    (/users/9720375/shinebayar-g) Shinebayar G Shinebayar G (reputation score) 5,200 (6 gold badges)  6  6 gold badges (22 silver badges)  22  22 silver badges (33 bronze badges)  33  33 bronze badges        1 (number of 'useful comment' votes received) 1   afaik there's no difference. Obviously if the mapped folder on the host is local. – (/users/2037044/stefano) (5,076 reputation) Stefano  Commented (2020-11-01 08:42:07Z, License: CC BY-SA 4.0) Nov 1, 2020 at 8:42   (this comment was edited 1 time)          (Use comments to ask for more information or suggest improvements. Avoid answering questions in comments.) Add a comment |  (Expand to show all comments on this post)          2 Answers 2   Sorted by:  (/questions/64629569/docker-bind-mount-directory-vs-named-volume-performance-comparison?answertab=scoredesc#tab-top) Reset to default   (scoredesc) Highest score (default)  (trending) Trending (recent votes count more)  (modifieddesc) Date modified (newest first)  (createdasc) Date created (oldest first)            This answer is useful  (70:3:31e,16:5b732e5c015a50c4,10:1744248581,16:dc9102377e8fa1f7,8:64631719,1b1411fc2ceb373baf6bddda41e6524f559af383218c09affa0cb67e090c3206) 26  (This answer is not useful)    (70:3:31e,16:07e692183c20a006,10:1744248581,16:fe3cbc0896b92e8b,8:64631719,146e7fadf7c21dba67763d5b6b27aa25fae7fa85f6e5d444c39f361570eefd58)      Save this answer.  (Loading when this answer was accepted…)     (/posts/64631719/timeline)    Show activity on this post.    On a couple of platforms ((https://docs.docker.com/docker-for-mac/troubleshoot/#known-issues) MacOS , (https://docs.docker.com/desktop/features/wsl/best-practices/) Windows with WSL 2 ) bind mounts are known to be especially slow. Beyond that, you shouldn't see a perceptible performance difference between named volumes, the container filesystem, files in the image (regardless of the number of layers), or bind mounts (particularly on native Linux). A good general rule might be to use bind mounts for config files and log files, where I/O is relatively rare but you as a human need to access the files directly; named volumes for database storage and other content where I/O is relatively frequent but as a human you can't directly read the files; and the image itself for your application code.   (/a/64631719) (Short permalink to this answer) Share  Share a link to this answer     Copy link (https://creativecommons.org/licenses/by-sa/4.0/) (The current license for this post: CC BY-SA 4.0) CC BY-SA 4.0     (/posts/64631719/edit) () Improve this answer  Follow (70:3:31e,16:4a09aef0fd0667a1,10:1744248581,16:f205434d9716d7a3,8:64631719,b60e9f6dcbc8dd3a6118d56cbef5755e40d899410e3257e8d3133addcc6959f2)  Follow this answer to receive notifications       (/posts/64631719/revisions) (show all edits to this post) edited (2025-01-10 00:58:44Z) Jan 10 at 0:58    (/users/27302/daniel-h) (Daniel H's user avatar)    (/users/27302/daniel-h) Daniel H (reputation score) 7,463 (2 gold badges)  2  2 gold badges (31 silver badges)  31  31 silver badges (45 bronze badges)  45  45 bronze badges     answered (2020-11-01 12:10:48Z) Nov 1, 2020 at 12:10   (/users/10008173/david-maze) (David Maze's user avatar)    (/users/10008173/david-maze) David Maze David Maze (reputation score 160,981) 161k (46 gold badges)  46  46 gold badges (249 silver badges)  249  249 silver badges (289 bronze badges)  289  289 bronze badges        4 (number of 'useful comment' votes received) 1   I'm definitely not an expert, but that Windows link seems to be making recommendations about where to bind mount rather than comparing bind mounts and volumes, specifically recommending bind mounting to another Linux container instead of the Windows file system. – (/users/356887/xdhmoore) (9,965 reputation) xdhmoore  Commented (2020-11-29 01:19:32Z, License: CC BY-SA 4.0) Nov 29, 2020 at 1:19      (number of 'useful comment' votes received) 1   Why would WSL 2 be slow (assuming that the bind mount is in the Linux file system and not the Windows file system) – (/users/3114742/zach-smith) (8,991 reputation) Zach Smith  Commented (2022-05-13 10:44:59Z, License: CC BY-SA 4.0) May 13, 2022 at 10:44        "but as a human you can't directly read the files" why would that be important? What if you have a case where I/O is frequent but the files are ones that humans want to read? – (/users/3753318/markr) (303 reputation) MarkR  Commented (2024-07-19 03:21:20Z, License: CC BY-SA 4.0) Jul 19, 2024 at 3:21        As a human being you can't exercise the I/O system enough to personally experience the performance issues.  You might read one file every several seconds compared to wanting to read thousands of files in a single second.  Editing, say, a single source file will almost always see fine to you, but when your language runtime wants to read an entire bind-mounted library tree, it can be visibly slow. – (/users/10008173/david-maze) (160,981 reputation) David Maze  Commented (2024-07-19 10:40:09Z, License: CC BY-SA 4.0) Jul 19, 2024 at 10:40        (Use comments to ask for more information or suggest improvements. Avoid comments like “+1” or “thanks”.) Add a comment |  (Expand to show all comments on this post)             This answer is useful  (70:3:31e,16:38864bcc372f4630,10:1744248581,16:13c23135be77659e,8:77054676,333afcc3de23ce49d2387d3d1d868b885c377328a47543d8ce0e2b88088c96b8) 0  (This answer is not useful)    (70:3:31e,16:220a6de17dcbd9bc,10:1744248581,16:327760af8a533702,8:77054676,34a6e76f825fdbaf2e951eb2af790e1deea467c654f79546eed4c9cf364b1c48)      Save this answer.  (Loading when this answer was accepted…)     (/posts/77054676/timeline)    Show activity on this post.    In Windows there is a big performance hit if you set bind mounts on the Windows file system and not on the WSL file system: docker run -v \wsl$<DistroName> \path\to\mysql-data:/var/lib/mysql mysql:tag "We recommend against working across operating systems with your
files, ..... For the fastest performance speed, store your files in
the WSL file system if you are working in a Linux..."  (https://learn.microsoft.com/en-us/windows/wsl/setup/environment?source=recommendations) https://learn.microsoft.com/en-us/windows/wsl/setup/environment?source=recommendations  "Files can be accessed across the operating systems, but it may
significantly slow down performance."  (https://learn.microsoft.com/en-us/windows/wsl/setup/environment?source=recommendations#file-storage) https://learn.microsoft.com/en-us/windows/wsl/setup/environment?source=recommendations#file-storage    (/a/77054676) (Short permalink to this answer) Share  Share a link to this answer     Copy link (https://creativecommons.org/licenses/by-sa/4.0/) (The current license for this post: CC BY-SA 4.0) CC BY-SA 4.0     (/posts/77054676/edit) () Improve this answer  Follow (70:3:31e,16:a57a6bb72cd4af84,10:1744248581,16:4e95dd81ee49ce5f,8:77054676,2eba99f9a79436d13ce9ddb263959656830efa26f9a07f64439965d272913c61)  Follow this answer to receive notifications       answered (2023-09-06 19:11:12Z) Sep 6, 2023 at 19:11   (/users/11420308/iohnatan) (iohnatan's user avatar)    (/users/11420308/iohnatan) iohnatan iohnatan (reputation score) 21 (1 bronze badge)  1  1 bronze badge           (Use comments to ask for more information or suggest improvements. 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