Years ago at Google, the permissions system (OG ganpati, for the googlers) was having major performance issues related to OOM in Java. IIRC there was an epic th

Years ago at Google, the permissions system (OG ganpati, for the googlers) was having major performance issues related to OOM in Java. IIRC there was an epic thread where folks discussed potential resolutions including, this being Java, GC tuning. But in the end, string interning was what helped a ton to defer the scaling issues until something else could be done (mostly a rewrite, smh). I mostly remember this as being a shocking solution to me. Part of me imagined there'd be some fancy scalable solution instead of single-binary optimization, but at the end of the day sometimes you just gotta intern some strings.