I don’t remember details now, but I’ve seen a situation when a Java app was working slower and a box with more RAM (and probably a bigger heap size), compare to

I don’t remember details now, but I’ve seen a situation when a Java app was working slower and a box with more RAM (and probably a bigger heap size), compare to a box with the same CPU but 2x less RAM. I suspected that TLB cache was the reason, but didn’t have time to test this.