Nevertheless, the grow of cache seems to be fast: now up again to 7751.8 MB. 1,5GB in some hours with no real edits.
Maybe the use of ~NOCACHE~ on all pages, or those fine with it, might be good.
It has grown fast in the first few hours of re-indexing, but from what I had seen has stopped growing at 4.5 GB. Not sure where 7751.8 MB comes from, but I think the value is wrong. (Getting directory size from FTP takes a long time for a large directory tree, because every sub-directory has to be read with a single FTP command and then all counted together. I think many FTP programs use some cache to remember the size of directories and some numbers might become outdated if not reading everything again.)
But in any case, the cache is big. Maybe worth trying to turn off cache.
Probably easiest to try is to just disable caching in the
admin settings , by setting "maximum age for cache" to -1 (
not to 0 ), so one can see how well everything works without cache, whether page loading is much slower etc., without changing aynthing in the files at first.
But maybe good to wait until indexing is finished to have a good estimation of the performance.