How to waste the least space with browser tabs?

How to waste the least space with browser tabs?

1) When starting a new tab, which uses less RAM: to enter the new
url in a current tab and move forward to it from the current url. OR
to close the current tab and open a new empty one???

I would think the second is the better one, except maybe there is
overhead in opening a new tab, and maybe closing the old tab leaves
some space unreleased that corresponds to some of that overhead. Thus
gettering and extra chunk of overhead for every tab closed.

I know that closing tabs in itself is not enough to put the RAM
situation back the way it was. If I open too many tabs, and the
browser starts to slow, I can release 5 tabs or more, until only one
tab shows, and the browser will still be slow and about to freeze.

This might well vary from browser to browser, so I'm curious about
them all but most interested in Firefox and SeaMonkey. (Firefox has
several features SM doesn't have, but every 5 minutes there was a
script problem, and as few as 5 tabs could make it freeze in XP. SM
is much better about that.


2) Also, I have the impression that maps and satellite views take a
lot of RAM, because they have a value for every*** pixel on the
screen, plus if one has moved left, right, up, down all that data even
though it's not in view is in RAM also (it might be in Virtual Stoage,
but thrashing is another problem. So if I think I've opened too
many tabs and I should try to free up space, am I right that google
maps and sat. view are a much better place to start than an all text
page or one with a few graphics???


***Unless there is some compression/zipping that I don't know about.

In article , Micky
wrote:


2) Also, I have the impression that maps and satellite views take a
lot of RAM, because they have a value for every*** pixel on the
screen, plus if one has moved left, right, up, down all that data even
though it's not in view is in RAM also (it might be in Virtual Stoage,
but thrashing is another problem. So if I think I've opened too
many tabs and I should try to free up space, am I right that google
maps and sat. view are a much better place to start than an all text
page or one with a few graphics???

no.

***Unless there is some compression/zipping that I don't know about.

there is.

On 5/15/2017 6:00 AM, Micky wrote:
How to waste the least space with browser tabs?

1) When starting a new tab, which uses less RAM: to enter the new
url in a current tab and move forward to it from the current url. OR
to close the current tab and open a new empty one???

I would think the second is the better one, except maybe there is
overhead in opening a new tab, and maybe closing the old tab leaves
some space unreleased that corresponds to some of that overhead. Thus
gettering and extra chunk of overhead for every tab closed.

I haven't measured anything, but I would expect closing the tab and
opening a new one would use less memory... IF there is any difference at
all. I believe the issue is retention of previous page information
which doesn't really change between the two cases. You don't say which
browser you are using, but the ones I use retain all manner of info on
visited pages including a complete image. At least that is what I've
read when browser memory usage is explained. I can't understand why a
browser uses GB of memory except for that sort of memory use.


I know that closing tabs in itself is not enough to put the RAM
situation back the way it was. If I open too many tabs, and the
browser starts to slow, I can release 5 tabs or more, until only one
tab shows, and the browser will still be slow and about to freeze.

I think you can tell the browser to not retain all that info, but don't
ask me how to do it. Also this depends on the browser.


This might well vary from browser to browser, so I'm curious about
them all but most interested in Firefox and SeaMonkey. (Firefox has
several features SM doesn't have, but every 5 minutes there was a
script problem, and as few as 5 tabs could make it freeze in XP. SM
is much better about that.

I have all but quit using Firefox because it runs so slow. I use
Windows and am primarily using Opera and some Chrome these days. Opera
seems to be the most well behaved browser I have seen, but every once in
a while a page won't work correctly with it. I tried looking at a
supermarket sale page and had to use Chrome. But that is *very*
infrequent.


2) Also, I have the impression that maps and satellite views take a
lot of RAM, because they have a value for every*** pixel on the
screen, plus if one has moved left, right, up, down all that data even
though it's not in view is in RAM also (it might be in Virtual Stoage,
but thrashing is another problem. So if I think I've opened too
many tabs and I should try to free up space, am I right that google
maps and sat. view are a much better place to start than an all text
page or one with a few graphics???

Every page has a full bit mapped image generated in RAM, so that isn't
an issue. But it does have to uncompress the image files (jpg or
whatever) to bit map. That uses CPU time. You may be facing a memory
shortage. I run with 16 GB, but I also have bunches of tabs always open.

--

Rick C

Micky wrote:
How to waste the least space with browser tabs?

1) When starting a new tab, which uses less RAM: to enter the new
url in a current tab and move forward to it from the current url. OR
to close the current tab and open a new empty one???

I would think the second is the better one, except maybe there is
overhead in opening a new tab, and maybe closing the old tab leaves
some space unreleased that corresponds to some of that overhead. Thus
gettering and extra chunk of overhead for every tab closed.

I know that closing tabs in itself is not enough to put the RAM
situation back the way it was. If I open too many tabs, and the
browser starts to slow, I can release 5 tabs or more, until only one
tab shows, and the browser will still be slow and about to freeze.

This might well vary from browser to browser, so I'm curious about
them all but most interested in Firefox and SeaMonkey. (Firefox has
several features SM doesn't have, but every 5 minutes there was a
script problem, and as few as 5 tabs could make it freeze in XP. SM
is much better about that.


2) Also, I have the impression that maps and satellite views take a
lot of RAM, because they have a value for every*** pixel on the
screen, plus if one has moved left, right, up, down all that data even
though it's not in view is in RAM also (it might be in Virtual Stoage,
but thrashing is another problem. So if I think I've opened too
many tabs and I should try to free up space, am I right that google
maps and sat. view are a much better place to start than an all text
page or one with a few graphics???


***Unless there is some compression/zipping that I don't know about.

Map caching involves individual square graphics images arranged
in a grid. A certain number of them can be stored in a folder on
the computer (perhaps even the browser cache file system). The
renderer should only select a portion of those, at any one moment,
for rendering. It should only need as much memory as it needs to
composite the window showing the map.

*******

"about:memory"

https://developer.mozilla.org/en-US/...e/about:memory

"It also lets you do other memory-related operations like trigger GC"

GC stands for garbage collection. If you watch Firefox usage in Task
Manager, you will see it go up and down like a roller-coaster. The
downward parts are garbage collection.

Seamonkey might not have that feature.

Paul