-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Shawn,
On 1/4/19 13:07, Shawn Heisey wrote: > On 1/4/2019 10:44 AM, John Dale wrote: >> Interesting note: "likely includes memory that Java requires >> beyond the Java heap size itself" >> >> Can you expound on this? > > In the majority of cases, most of the memory that Java allocates > from the system is its heap. > > But there are other memory structures required. One of those is > the space where Java loads things like classes. Java is a very > complicated piece of software that would require a number of > in-memory structures for various operations. The one that comes to > mind most readily is garbage collection. Also the actual compiled code from all that Java bytecode. It's gotta go somewhere. > The OP said the max heap they could get allocated was 1600MB. > Which suggests that Java is requiring a few hundred megabytes to be > allocated for its own operation, fitting inside the 2GB max. > > If more memory is needed in the heap, the only option will be to > switch to 64-bit Java. If you *absolutely need* to run 32-bit JVM, could you perhaps switch to another OS? I think that many folks have been able to squeeze a little more RAM from Linux than they have been able to from Windows. Maybe it's time to move to Docker :) - -chris -----BEGIN PGP SIGNATURE----- Comment: Using GnuPG with Thunderbird - https://www.enigmail.net/ iQIzBAEBCAAdFiEEMmKgYcQvxMe7tcJcHPApP6U8pFgFAlwxE7AACgkQHPApP6U8 pFi7hBAAwFPtOz0mOAAEhVrzl3tSUNi4rksbymnHkHPb62vzkA9NtGw4cHlAMy2F 5ksbCfT1IbLoJkm5+GZx3PdUWnO7w/jggyATeuoGyTakq7XPJPqwRXNnu1pMgejJ S4YHHlkeJ2lV0A0nnq154OPrES/8Y4FWLE8G+CgCMuEwGMY+1PYIGMurxPGhS/1l UU7ZXYZKcJFzeBRSFxeva3fidsBRpO60JU/E+eaKlq8ScZVnvLiqsPsb/3RYHo2F fWd4KxXUUwUuaemoMLHfMWbNYWY7MGYI/fR9i0jkMFELirv8eHtSDVb1pweffSzh ZbrSAltB38EhkZkt2wyPptot18vyDstLUnaLj9CQkY+k7Dl/SLmS24AezDFwgT3x Jb7bS4Mk9mKmw0+RY6GoSsQ7cdOWG23lxIK7CT3ebLaiWat5/sI1K/830uo0Wm4s 2aUnqkMvcrkrUI0XbKjtP2MEGZ4QRsMdIVQ5qW5+2844GONZwMEUJdYkLG3WMuid SWOH8CNAWli0cw5P/RO9cAeVbgH9L4MFTuCJfwxWdVhQ7ME3nWgl6oUa23IQRF0i Kem0RoHZPa40ucwKvIHM6ErrIqXCUppYb+HBhNJKWSBQSGtx5IjuQcOQSdjmCGoy ZRvjnnDIB4Ho3on0SQowIbX5dMFa9eDoAY8pXIDsyQUWmZvT7rw= =zo7q -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
