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  • No swap partition though? Commented Oct 6, 2021 at 15:42
  • There is swap volume in the VG, primarily for hibernation resume. I wrote about that. Commented Oct 6, 2021 at 16:07
  • Ah yeah, must've overlooked that Commented Oct 6, 2021 at 16:41
  • Thanks. I have read up on bcache, and it looks complicated as it requires me to reformat my partitions. I already have LVM. Wouldn't using lvmcache be almost as good? Your suggestion is good, but one thing I just do not like about it is the complications - that means potential breakage. I do not have bandwidth to deal with breakage. Commented Oct 7, 2021 at 12:01
  • According to some tests linux-geex.com/benchmark-bcache-vs-lvmcache-vs-no-cache , lvm cache is almost completely ineffective, up to making things actually worse. // As of breakage, I live 1.5Y this way, survived tens of updates, including kernel updates, GCC, glibc, grub updates, virtually every tool in initramfs and base system, deprecation of Python 2, etc. There were no major breakages, except during debug stage. Commented Oct 7, 2021 at 12:25