Description of problem: mDNSResponder process uses too much virtual memory Version-Release number of selected component (if applicable): mDNSResponder -v mDNSResponder release 0.9.6 Copyright(c) Porchdog Software 2004. howl-0.9.6-6 How reproducible: Just run in a shell: pmap -x <PID_OF_mDNSResponder_PROCESS> Here is the output that I get: pmap -x 2039 2039: mDNSResponder Address Kbytes RSS Anon Locked Mode Mapping 08048000 136 - - - r-x-- mDNSResponder 0806a000 4 - - - rw--- mDNSResponder 0806b000 1104 - - - rw--- [ anon ] 0912d000 132 - - - rw--- [ anon ] f6450000 308 - - - rw--- [ anon ] f649d000 4 - - - ----- [ anon ] f649e000 10248 - - - rw--- [ anon ] f6ea0000 1156 - - - r-x-- libc-2.3.3.so f6fc1000 8 - - - r---- libc-2.3.3.so f6fc3000 8 - - - rw--- libc-2.3.3.so f6fc5000 8 - - - rw--- [ anon ] f6fc7000 56 - - - r-x-- libpthread-2.3.3.so.#prelink#.oAXIQO (deleted) f6fd5000 4 - - - r---- libpthread-2.3.3.so.#prelink#.oAXIQO (deleted) f6fd6000 4 - - - rw--- libpthread-2.3.3.so.#prelink#.oAXIQO (deleted) f6fd7000 8 - - - rw--- [ anon ] f6fe9000 84 - - - r-x-- ld-2.3.3.so f6ffe000 4 - - - r---- ld-2.3.3.so f6fff000 4 - - - rw--- ld-2.3.3.so feea6000 1384 - - - rw--- [ stack ] ffffe000 4 - - - ----- [ anon ] -------- ------- ------- ------- ------- total kB 14668 - - - ^^^^^^ More than 14MB total VM usage! Of which >10MB anonymous mapping and ~1.3MB stack. These numbers seem to be too high for a small program like mDNSResponder Steps to Reproduce: 1. 2. 3. Actual results: Expected results: Additional info:
Well, if you don't like it, don't run it :-) Really, mDNSResponder's memory usage is rather average - consider that of named: ... total kB 36556 - - - or of ypbind: total kB 24264 - - - I don't think it is worthwhile expending development effort on tweaking mDNSResponder's memory usage, as it causes no actual problems, and howl is now end-of-life, having been replaced by avahi.