Hello Pavel, Feel free to create a PR on GitHub.
Gary On Thu, Nov 17, 2022, 07:38 Pavel Belousov <pavel.belou...@booking.com.invalid> wrote: > Hi, > > After the upgrade of the `commons-text` library from 1.8 to 1.10 we faced a > higher number of garbage collections and higher times of garbage > collection. For now we rolled back to 1.8 but as I had some vulnerabilities > we do want to upgrade. > > We are actively using the `TextStringBuilder` class, so I've briefly looked > at the changes there. One change looks suspicious - hashCode method change > in following PR https://github.com/apache/commons-text/pull/281. > As I understand this correctly for now you are creating a new String > instance every time when Java calls `hashCode` method. > > I implemented a simple loop that calls hashCode 100M times, turned on > verbose GC (-verbose:gc -XX:+PrintGCDetails) and I can confirm that with > the new implementation GC runs 55 times instead of 2. > > As I cannot sign up for your jira, could you please help me create the > ticket and if possible probably you could rollback the implementation to > that was in 1.8 version? > > Thank you in advance! > -- > Pavel Belousov > Senior Software Engineer > [image: Booking.com] <https://www.booking.com/> > Making it easier for everyone > to experience the world. >
