Date: Tue, 2 May 2000 21:27:49 +0000 (GMT) From: Terry Lambert <tlambert@primenet.com> To: kris@hiwaay.net (Kris Kirby) Cc: freebsd-chat@FreeBSD.ORG Subject: Re: Naw, Netscape doesn't have a memory problem! Message-ID: <200005022127.OAA00936@usr02.primenet.com> In-Reply-To: <Pine.BSF.4.10.10005010030340.67368-100000@barricuda.bsd.nws.net> from "Kris Kirby" at May 01, 2000 12:34:22 AM
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> PID USERNAME PRI NICE SIZE RES STATE TIME WCPU CPU COMMAND > 24647 kris 105 20 1024K 404K RUN 276.2H 96.19% 96.19% dnetc > 77067 kris 2 0 259M 123M select 176:15 2.39% 2.39% netscape > 78371 kris 28 0 1568K 792K RUN 0:00 0.00% 0.00% top > 78372 kris 28 0 468K 280K RUN 0:00 0.00% 0.00% csh > > That's only *one* day's worth of surfing. It's 3.4-R, Netscape 4.08. I'm > beinging to think I need to install it on my dual-Celeron 433 with 320 MB > of RAM instead. Then it won't need to page. You are using the shared memory extension. Disable it; you can do this explicitly, or you can do this by forcing NetScape to not use the UNIX domain socket; if it comes in over the TCP/IP, it will not attempt to use the extension. The problem appears to be that bitmaps instanced in shared memory do not have their reference counts properly decremented when they are no longer referenced. I'm not sure whether this is an invalid resource tracking assumption made by the Netscape programmers, or a bug endemic to the use of the shared memory extension itself. If I had to guess, I would guess the former, since Netscape has historically had some bad assumption in their code with regard to things like threads reentrancy, or what thread will get scheduled following a return from an involuntary context switch (they seem to be doing better on this last one in their most recent release, FWIW). Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-chat" in the body of the messagehelp
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