Bug 751189
| Summary: | /run/initramfs sits around after booting taking up ram. | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Dave Jones <davej> |
| Component: | dracut | Assignee: | Harald Hoyer <harald> |
| Status: | CLOSED RAWHIDE | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 16 | CC: | dracut-maint, dvlasenk, harald, jonathan, pfrields, zkabelac |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2012-01-23 11:31:40 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
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Description
Dave Jones
2011-11-03 19:26:16 UTC
On shutdown, we go back to the initramfs now. It is needed to properly disassemble raid devices or log out of network servers that provide filesystems. Dracut should probably delete itself, like it did in earlier releases, when there was nothing to assemble during bootup. even when there is something to assemble, there's a ton of crap left there taking up ram that isn't going to get used. not only dracut, but the bulk of it is stuff like plymouth themes, keymaps, and kernel modules. just keep around the bare minimum that's needed to do what you need. yes, you are right... and for those who don't want it right now: # echo "unset prefix" >> /etc/dracut.conf.d/99-my.conf (In reply to comment #2) > even when there is something to assemble, there's a ton of crap left there > taking up ram that isn't going to get used. > > not only dracut, but the bulk of it is stuff like plymouth themes, keymaps, and > kernel modules. It's huge. # du -s -k /run/initramfs 42076 /run/initramfs Forty two megs on my machine. dracut-014-61.git20120123.fc17 *** Bug 785538 has been marked as a duplicate of this bug. *** $ du -ch /run/initramfs 12M /run/initramfs for a hostonly dracut image. I still somehow don't get it - My machine could run for a week with just suspending - I'm not using swap. And now I don't get the point of blocking 12MB of memory just because maybe I want to reboot once in a week? Why is problem to decompress image to ramdisk BEFORE doing a reboot - and then run needed binaries from there - yeah it may delay reboot for 0.1 second.... (In reply to comment #8) > I still somehow don't get it - > > My machine could run for a week with just suspending - I'm not using swap. > And now I don't get the point of blocking 12MB of memory just because maybe I > want to reboot once in a week? > > Why is problem to decompress image to ramdisk BEFORE doing a reboot - and then > run needed binaries from there - yeah it may delay reboot for 0.1 second.... Actually, the idea of compressing, saving and restoring has also come to my mind. Have to think about it a little bit more. $ du -ch /run/initramfs/ 8.0K /run/initramfs/ 8.0K total fixed with dracut-015-8.git20120210.fc17 |