Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!apple!snorkelwacker.mit.edu!ai-lab!zurich.ai.mit.edu!jinx From: jinx@zurich.ai.mit.edu (Guillermo J. Rozas) Newsgroups: comp.sys.hp Subject: interaction between chatr and cachectl in HP-UX 7.05 Message-ID: Date: 27 Mar 91 16:18:52 GMT Sender: news@ai.mit.edu Reply-To: jinx@zurich.ai.mit.edu Organization: M.I.T. Artificial Intelligence Lab. Lines: 12 I have a few questions about cachectl in HP-UX 7.05: 1) If the executable has been changed to have the cache operate in write-through mode for the data (and stack) segment, is cachectl (I_PURGE, 0, 0) then a NOP since there are no longer any dirty D-cache lines, or does it still flush the I cache? If it does not, how can I make it do that? 2) Is cachectl available for the PA machines in 8.0x ? I know about FDC/FIC, etc. but would like to flush the whole cache. I also know about FDCE/FICE and about the lack of documentation on their use.