2011/2/14 Dmytro Sheyko <dmytro_she...@hotmail.com>: > Hi, > > I can see that such system property as "sun.cpu.isalist" is not set on > Linux, but it is set on Solaris and Windows. > What is the purpose of this property and shouldn't it be set on Linux as > well? > > Thanks, > Dmytro > >
On Solaris, it includes the results of a call to sysinfo(SA_ISALIST, list, sizeof(list)): http://www.opensolarisforum.org/man/man2/sysinfo.html SI_ISALIST Copy into the array pointed to by buf the names of the variant instruction set architectures executable on the current system. The names are space-separated and are ordered in the sense of best performance. That is, earlier-named instruction sets might contain more instructions than later-named instruction sets; a program that is compiled for an earlier-named instruction set will most likely run faster on this machine than the same program compiled for a later-named instruction set. Programs compiled for an instruction set that does not appear in the list will most likely experience performance degradation or not run at all on this machine. The instruction set names known to the system are listed in isal- ist(5); these names might not match predefined names or compiler options in the C language compilation system. This command is obsolete and might be removed in a future release. See getisax(2) and the Linker and Libraries Guide for a better way to handle instruction set extensions. -- Andrew :-) Free Java Software Engineer Red Hat, Inc. (http://www.redhat.com) Support Free Java! Contribute to GNU Classpath and the OpenJDK http://www.gnu.org/software/classpath http://openjdk.java.net PGP Key: F5862A37 (https://keys.indymedia.org/) Fingerprint = EA30 D855 D50F 90CD F54D 0698 0713 C3ED F586 2A37
