[//]: #@corifeus-header [](https://www.npmjs.com/package/p3x-ramdisk/) [](https://travis-ci.org/patrikx3/ramdisk) [](https://scrutinizer-ci.com/g/patrikx3/ramdisk/?branch=master) [](https://scrutinizer-ci.com/g/patrikx3/ramdisk/?branch=master) # RAM disk persistent with Systemd timer, service and suspend v1.1.8-303 This is an open-source project. Star this repository if you like it, or even donate! Thank you so much! :) I run my own server with dynamic IP address so it may happen that the server can not be reachable for about max 5 minutes due to the dynamic DNS. The server may also be unreachable when I backup the SSD with Clonzilla (very rarely) or an electrical issue (but this should not happen again). When the server is down, please hang on for 5-30 minutes and the server will be back up. All my domains (patrikx3.com and corifeus.com) could have errors since I am developing in my free time. However, it is usually stable. ### Node Version Requirement ``` >=8.9.0 ``` ### Built on Node ``` v9.11.1 ``` The ```async``` and ```await``` keywords are required. Install NodeJs: https://nodejs.org/en/download/package-manager/ # Description [//]: #@corifeus-header:end # Breaking change ## v1.1 This is only important if you have an older version (1.0.x-y) and/or you use linked folders (like IntelliJ). It will never change anymore, but sometimes I can delete accidentally my data from the ramdisk, so I refactored the name instead of: ```text /home/user/ramdisk/persistence ``` now it is called ```text /home/user/ramdisk/.p3x-ramdisk-persistence ``` (hidden by default). If you are linked to IntelliJ for example, you have to recreate the symlink in your home. For example, migration looks like this: ```bash # exit intellij if you have linked sudo p3x-ramdisk stop sudo npm i -g p3x-ramdisk sudo p3x-ramdisk install $USERNAME sudo p3x-ramdisk start # so you are already linked into p3x-ramdisk, here # (if you are not linked, do not delete and # do not execute below, only if the intellij # data is linked and you are sure it is a # symlink ) ll ~/.IntelliJIdea2018.1 ``` Shows: ```text lrwxrwxrwx 1 patrikx3 patrikx3 94 Apr 14 19:34 /home/patrikx3/.IntelliJIdea2018.1 -> /home/patrikx3/ramdisk/.p3x-ramdisk-persistence/content/.p3x-ramdisk-link/.IntelliJIdea2018.1/ ``` **MAKE SURE YOU EXIT FROM INTELLIJ.** If you are sure it is a link, you can recreate like: ```bash rm ~/.IntelliJIdea2018.1 ln -s ~/ramdisk/.p3x-ramdisk-persistence/content/.p3x-ramdisk-link/.IntelliJIdea2018.1/ ~ rm -rf ~/ramdisk/persistence ``` Now you are safe. # Install ```bash sudo npm install -g p3x-ramdisk --unsafe-perm=true --allow-root ``` ## IntelliJ Speed Based on: http://sheroz.com/pages/blog/improving-development-performance-moving-intellij-idea-cache-ramdisk.html ```text After all these tricks I tried to open my current project with IntelliJ IDEA 12 … Wow!!! It is fantastic! Works like a … sword!!! Why sword?! I don’t know exactly. May be because of Darcula theme. This is just first thought what came to my mind seeing the overall results. The Intellij IDEA 12 now works as a lightsaber sword, as a weapon of a Jedi Knight, which you can trust in Java world! ``` * Requires tmpfs, bash, fstab, rsync, memory :) * Usually, all requirements of every Unix flavor are installed by default * SystemD * Service * Timer * Suspend * RAM disk to HDD * Linux for sure, easy to extend for Unix, BSD, macOS * Should might need some tuning, but the functions are there, I just only tested in Linux. ## Intel Optane I think my ramdisk is faster. :) Ciao!!! # Use case Speed up IntelliJ and development Node. (Tons of files.) The result is that the development is many folds faster. No waiting at all. # Install ```text patrikx3@workstation ~ $ p3x-ramdisk install --help Usage: install [options] <uid> Install a p3x-ramdisk Options: -h, --help output usage information -r, --rampath [path] The path of the ram disk, default /home/$USERNAME/ramdisk -p, --persistent [path] The path of the ram persistent, default /home/$USERNAME/ramdisk-persistent -g, --gid [group] The gid, it you omit it is the current user -t, --timer [minutes] The timer in minutes, minimum about 10 minutes, Default is 20 minutes, the best -s, --size [megabytes] Ramdisk in size of megabytes, default is 4096 megabytes ``` # IMPORTANT Trash is disabled in GNOME with p3x-ramdisk. It will ask for confirm to delete data. You might have it in the previous save. It is possible to enable trash bin, but for me is not important now, so I disabled, memory is not cheap. # Setup **Use GitHub for info, NPM hides wide strings.** https://github.com/patrikx3/ramdisk ```bash # of course your data will never be deleted, # double persistence (current, previouse, saves every 20 minutes) # load on boot, plus at shutdown and suspend it saves sudo npm install -g p3x-ramdisk --unsafe-perm=true --allow-root # install # if you need less/more memory, add -s 1024 or even more, 10GB is good :) sudo p3x-ramdisk install $USERNAME # Get the output, add to /etc/fstab echo "tmpfs /home/patrikx3/ramdisk tmpfs gid=10000,uid=10000,size=4096M 0 0" | sudo tee -a /etc/fstab sudo mount -a # you should verify the ramdisk is existing now, you might have to reboot # on linux it can show your settings, like below: df -h # if there is an error, you can sudo p3x-ramdisk stop # if all good # STARTUP THE RAMDISK PERSISTENT sudo p3x-ramdisk start # you can work like here # /home/$USERNAME/ramdisk/.p3x-ramdik-persistence/content # SOME DEBUG p3x-ramdisk watch # to trigger a savs p3x-ramdisk save # you don't need usually to save # the default is 20 minutes # the systemd service saves on suspend and shutdown # to stop the services # removes sync, so the ramdisk files will be unavailable, # only be in /home/username/ramdisk-persistent/current sudo p3x-ramdisk stop # your duplicate copies are ls -all /home/$USERNAME/ramdisk-persistent/current/ ls -all /home/$USERNAME/ramdisk-persistent/previous/ # you are done # the default use case is to speed up working with IntelliJ and my projects to ramdisk # if you just want persistent folder and that's all # there is a special folder, .p3x-ramdisk-link # everything there is linked into /home/$USERNAME # if there is nothing in .p3x-ramdisk-link # no linking is. to test it, you might not need it. ``` ## Linkin' in /home ```bash ### //LINKING:START # LINKING - IS NOT REQUIRED, but is good as a sword :) p3x-ramdisk save sudo p3x-ramdisk stop mkdir -p /home/$USERNAME/ramdisk-persistent/current/.p3x-ramdisk-link cp -avr /home/$USERNAME/.IntelliJIdea2017.3 /home/$USERNAME/ramdisk-persistent/current/.p3x-ramdisk-link # backup mkdir -p /home/$USERNAME/backup mv /home/$USERNAME/.IntelliJIdea2017.3 /home/username/backup/ # need to delete the originals, since they become symlinks rm -rf /home/$USERNAME/.IntelliJIdea2017.3 sudo p3x-ramdisk start ### //LINKING:END ``` # Output ## Install ```text patrikx3@laptop:~/ramdisk/.p3x-ramdik-persistence/content/.p3x-ramdisk-link/Projects/patrikx3/ramdisk$ sudo p3x-ramdisk install patrikx3 -s 6144 2017-05-08 00:30:08: terminal install 2017-05-08 00:30:08: terminal copy 2017-05-08 00:30:08: terminal suspend 2017-05-08 00:30:08: terminal reload services 2017-05-08 00:30:08: terminal install done Settings: { "rampath": "ramdisk", "persistent": "ramdisk-persistent", "uid": "patrikx3", "uidNumber": 10000, "gid": "patrikx3", "timer": 20, "size": "4096", "home": "/home/patrikx3", "script": "/home/patrikx3/.p3x-ramdisk" } Final commands: -------------------------- 1) You only have to do it once, if you haven't done it before echo "tmpfs /home/patrikx3/ramdisk tmpfs gid=10000,uid=10000,size=4096M 0 0" | sudo tee -a /etc/fstab sudo mount -a -------------------------- 2) verify that ramdisk is working, see it here df -h -------------------------- 3) if everything is ok, start the persistent ramdisk sudo p3x-ramdisk start patrikx3@laptop:~/ramdisk/.p3x-ramdik-persistence/content/.p3x-ramdisk-link/Projects/patrikx3/ramdisk$ ``` ## Watching the RAM disk ```bash p3x-ramdisk watch ``` ``` Filesystem Size Used Avail Use% Mounted on tmpfs 4,0G 2,0G 2,1G 50% /home/patrikx3/ramdisk total used free shared buff/cache available Mem: 31G 3,3G 18G 2,0G 9,8G 25G Swap: 8,0G 0B 8,0G Load: 2017-05-27 09:01:49 2017-05-27 09:01:56 0 minutes 7 seconds Save: 2017-05-27 09:20:00 2017-05-27 09:20:16 0 minutes 16 seconds 2017-05-27 09:20:00: timer save, ramdisk to current 2017-05-27 09:20:00: timer save /home/patrikx3/ramdisk/.p3x-ramdik-persistence/content to /home/patrikx3/ramdisk-persistent/current 2017-05-27 09:20:16: timer saved 2017-05-27 09:20:16: timer save done 2017-05-27 09:20:16: timer 0 minutes 16 seconds 5/27/2017, 9:24:45 AM | Persistence 20 minutes | Watch 1 second ``` # LOGS ``` /home/username/ramdisk-persistent/ramdisk-persistent.log ``` ``` /home/username/ramdisk-persistent/update-at-load.log ``` ``` /home/username/ramdisk-persistent/update-at-save.log ``` ## LOG info ```text 2017-05-06 02:57:37: boot loading 2017-05-06 02:57:37: boot load /home/patrikx3/ramdisk-persistent/current to /home/patrikx3/ramdisk/.p3x-ramdik-persistence/content 2017-05-06 02:57:47: boot loaded 2017-05-06 02:57:47: boot link 2017-05-06 02:57:47: boot link /home/patrikx3/ramdisk/.p3x-ramdisk-persistence/content/.IntelliJIdea2017.3 to /home/patrikx3/.IntelliJIdea2017.3 2017-05-06 02:57:47: boot link /home/patrikx3/ramdisk/.p3x-ramdisk-persistence/content/Projects to /home/patrikx3/Projects 2017-05-06 02:57:47: boot link done 2017-05-06 02:57:47: boot 0 minutes 10 seconds 2017-05-06 02:57:47: timer save 2017-05-06 02:57:47: timer save, current to previous 2017-05-06 02:57:47: timer save /home/patrikx3/ramdisk-persistent/current to /home/patrikx3/ramdisk-persistent/previous 2017-05-06 02:57:50: timer saved 2017-05-06 02:57:50: timer save, ramdisk to current 2017-05-06 02:57:50: timer save /home/patrikx3/ramdisk/.p3x-ramdisk-persistence/content to /home/patrikx3/ramdisk-persistent/current 2017-05-06 02:57:53: timer saved 2017-05-06 02:57:53: timer save done 2017-05-06 02:57:53: timer 0 minutes 6 seconds ``` ## LOG Update ```text 2017-05-06 03:31:51 2017-05-06 03:31:57 0 minutes 6 seconds ``` # Thunder ramdisk persistence ```text patrikx3@workstation ~/ramdisk-persistent/current/.p3x-ramdisk-link $ ll total 32 drwxr-xr-x 8 patrikx3 patrikx3 4096 May 7 13:04 ./ drwxr-xr-x 3 patrikx3 patrikx3 4096 May 7 13:02 ../ drwxr-xr-x 4 patrikx3 patrikx3 4096 Apr 25 17:51 .IntelliJIdea2017.3/ patrikx3@workstation ~/ramdisk-persistent/current/.p3x-ramdisk-link $ ``` [//]: #@corifeus-footer --- [**P3X-RAMDISK**](https://pages.corifeus.com/ramdisk) Build v1.1.8-303 [](https://www.facebook.com/corifeus.software) [](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=QZVM4V6HVZJW6) [](https://www.patrikx3.com/en/front/contact) ## Sponsor [](https://www.jetbrains.com/) [//]: #@corifeus-footer:end