nextcloud
enh(admin_manual): update OPcache JIT docs
Single Nextcloud instances have shown to use less than 2 MiB of the configured JIT buffer size, so that 8 MiB is sufficient by a large margin. Using any larger value pre-occupies the opcache.memory_consumption accurdingly and 128 MiB would hence fill its default 128 MiB completely, without any benefit.
The example JIT size is hence reduced to 8 MiB. Enabling JIT however has shown to raise overall OPcache usage by a larger amount than the configured JIT size, so that opcache.memory_consumption might still need to be raised in some cases. This information is added to the documentation: https://github.com/nextcloud/all-in-one/issues/2755#issuecomment-1591848523
Additionally, the info is added that JIT is currently supported on x86 platforms only.
☑️ Resolves
- Fix #…
