From fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4 Mon Sep 17 00:00:00 2001 From: Joseph Hunkeler Date: Wed, 8 Jul 2015 20:46:52 -0400 Subject: Initial commit --- unix/boot/vmcached/README | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 unix/boot/vmcached/README (limited to 'unix/boot/vmcached/README') diff --git a/unix/boot/vmcached/README b/unix/boot/vmcached/README new file mode 100644 index 00000000..6844153c --- /dev/null +++ b/unix/boot/vmcached/README @@ -0,0 +1,17 @@ +VMCACHED -- VMcache daemon. + +The VMcache daemon is a Unix server which manages a file cache in virtual +memory. This is used to optimize virtual memory usage, allowing files to +be cached in memory so that they can be shared or accessed without going +to disk. It is also possible to conditionally access files via "direct +i/o", bypassing system virtual memory and transferring the data directly +from disk to or from process memory. + +NOTE: as of Dec 2001, the Vmcache library and vmcached have been updated +to provide the capabilites described above. The daemon runs, and was used +to develop the VM client interface, which is currently functional, tested, +and installed in os$zfiobf.c. The new version of the VMcache library +however, has not yet been fully tested and should not be used. + +Since this code is still under development it is not part of the normal +IRAF build (hence no mkpkg or mkpkg.sh). -- cgit