On Wed, 29 Aug 2012, Bob Proulx wrote:
Bret Busby wrote:
opera web browser.
Each window of it shows as using 14GB of virtual memory.
Yowsa! So if you exit Opera as a test then suddenly a lot of memory
is freed up and the system is suddenly back to its normal speedy
state? Any other processes hiding behind it that are the second tier
of memory hog?
A problem that I (appear to) have found, is that the malware named
javascript appears to cause havoc in continually increasing usage of
RAM.
Yes. The curse of the modern world. I normally run Firefox with the
noscript extension. Then for the web sites that require Javascript I
use either Chromium or Midori with everything enabled, access the
site, then exit the browser afterward to free up the memory resources.
I enable javascript in Opera, as I use it for most online financial
transactions, including online banking, and, of the (more?) major web
browsers, as far as I am aware, opera is the only one that has not yet
been breached as far as security is concerned. I have seen multiple CERT
advisories for the Mozilla and Microsoft web browsers.
Other browsers that I use, include iceweasel and iceape and konqueror,
and I have used galeon and one that I think is named Epithany, and found
opera to be the most stable of them.
The problem with the progressive consumption of RAM, happens with any
web browser that I run, that has javascript enabled.
I have also found that none of the web browsers implement the "stop all
unwanted pop-ups", when that switch is set. Unwanted pop-ups still
occur.
I have found australian government web sites that use javascript,
including the ABC (Australian Broadcasting Corporation) news web site,
and online television guides that use javascript, to be bad for what
they do with the javascript.
I had understood that the operating system (in the case or Linux, the
kernel?) controls memory management, so that, depending on the settings,
once a threshold, for example, 50% of RAM, is used, the operating system
would start paging memory, using the allocated swap space, to provide
system stability until both swap space and RAM are totally used, then
crash, rather than just using up all of the RAM and mostly ignoring the
swap space and crashing the system, without significantly using the swap
space.
I am apparently wrong.
It used to work, much better, with Debian 3 and 3.1; I can't remember
much about Debian 4, then, as previously mentioned, I had the problem
and the solution as such, with Debian 5, and, now, with Debian 6,
memory management appears to simply not work, making Debian 6, at least
in the 64 bit version, of the nature of the attributes used to
describe the experimental version of Debian.
It has just taken me about 35 minutes to be able to log in to the
system, and, logging in is blind; the screen is black, and, after
typing in the password, blind, it takes up to about 35 minutes for the
system to respond.
Last night, it was taking up to 20 minutes for the system to respond to
a mouse click, and, typing in the text in composing an email message (I
am using alpine, the replacement for pine), most of the typing is
blind, as characters take a while to be displayed, and, about 40-60% of
the characters that are typed in, simply disappear, requiring composing
an email message to take about three times as much times as it should,
due to the required patching up of the text that disappears.
So, this 64 bit Debian 6 appears to be of the nature, in its
status,similar to the nature of the version named experimental.
And, someone's response that I seem to be the only person who has these
problems with Debian 6, makes me wonder whether it is instead, that I am
the only one who has these problems, that has managed, after much time
and effort, to be able to contact the outside world and be able to send
a help message, indicating what is happening, and thus, that others may
have the same problems, but are unable to either log in to their
systems, or, to compose and send email messages out.
--
Bret Busby
Armadale
West Australia
..............
"So once you do know what the question actually is,
you'll know what the answer means."
- Deep Thought,
Chapter 28 of Book 1 of
"The Hitchhiker's Guide to the Galaxy:
A Trilogy In Four Parts",
written by Douglas Adams,
published by Pan Books, 1992
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