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Feh / nocache

minimize caching effects
BSD 2-Clause "Simplified" License
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backup still using cache #53

Open pepeverde9 opened 1 year ago

pepeverde9 commented 1 year ago

Hi

I'm using the version of nocache that comes with Ubuntu. I am making backup of my home directory using tar, something like nocache tar -zcvp /home -f /mnt/usbhdd/backup.tgz but when I run cachestats /mnt/usbhdd/backup.tgz while running the backup command, it still reports about 3GB of pages in cache. My understanding was that the used cache should be much smaller. Is there any way to prevent tar and gzip from trashing the cache of the system during backup?

hhoffstaette commented 10 months ago

nocache will only uncache-on-close, i.e. when the large backup.tgz file has been fully written and the last writer closes their file descriptor. The problem is that your backup has only a single file. There is really nothing else that nocache can do in its current form. See #49