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2010-02-26
, 08:27
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Posts: 489 |
Thanked: 404 times |
Joined on Dec 2009
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#42
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Even if you jailbreak your iPhone, even if you install some Super-Extra-Power-Magnum-MultiTask-Fovever 2.0 Limited Edition in your iPhone, even if you manage to obtain some sort of active dashboard in your iPhone, how many apps could you keep opened at the same time with 256MB of RAM and no virtual memory? And how long will your battery live?
You would just have a micro-wave cooker without any warranty.
You would just have a micro-wave cooker without any warranty.
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2010-04-28
, 01:18
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Posts: 21 |
Thanked: 32 times |
Joined on Mar 2010
@ Ridgecrest, California, USA
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#43
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Originally Posted by nightfire
Coming from a guy who's done his fair share of OS work, multitasking *is* state-saving; some OSes just do it better (and faster) than others
If people can get by without true multitasking, more power to them.To even discuss the point is kinda silly in this day and age.
When you're used to true multitasking (not just state-saving), anything less feels like a toy.
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2010-04-28
, 03:37
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Posts: 1,427 |
Thanked: 2,077 times |
Joined on Aug 2009
@ Sydney
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#44
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Originally Posted by npsimons
even if multiple apps constantly do stuff in the background in real time?
Coming from a guy who's done his fair share of OS work, multitasking *is* state-saving; some OSes just do it better (and faster) than others
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2010-04-28
, 05:18
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Posts: 21 |
Thanked: 32 times |
Joined on Mar 2010
@ Ridgecrest, California, USA
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#45
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Originally Posted by jakiman
I was being facetious
even if multiple apps constantly do stuff in the background in real time?
Before another "task" ("thread", "process", whatever it's called) can be run, the OS has to save the state of the current task (mostly CPU registers) to RAM so it can restore the state of the other task; therefore, multitasking is a form of state-saving (it's just done automatically by the OS many many times a second). You are right, though, in pointing out that some OSes essentially freeze the "backgrounded" tasks and won't give them slices of CPU time until the user "foregrounds" them, thereby effectively making those OSes single-tasking systems.Be careful with the term "real-time" though; it has very specific meanings in OS land, and the truth is that hardly anything runs in real-time and doesn't really need to. Hardware is so high powered these days, and typical user requirements (even developers and power users) don't necessarily require it.
Last edited by npsimons; 2010-04-28 at 05:24. Reason: d'oh!
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2010-04-28
, 14:34
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Posts: 310 |
Thanked: 383 times |
Joined on Jan 2010
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#46
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Ok, ok. I meant multitasking as in context switching, VM, semaphores, etc.
I meant multitasking as in context switching, VM, semaphores, etc.
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2010-04-28
, 19:49
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Posts: 1,038 |
Thanked: 1,408 times |
Joined on Feb 2010
@ London
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#47
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This is great for me. Now to share this image with my fellow friends
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2010-08-22
, 10:14
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Posts: 143 |
Thanked: 4 times |
Joined on Jan 2010
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#48
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great to hear... but now a days.. me having some problem.. especially web browsing.. it tends to hang and then said web browser is not responsive the close.... that is only 3 running apps.... sigh... anyone expereinceing this?
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2010-08-22
, 11:18
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Posts: 1,210 |
Thanked: 597 times |
Joined on Apr 2010
@ hamburg,germany
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#49
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multitasking is really great
and btw:has someone used the full ram and swap yet?
would be very interesting....
and btw:has someone used the full ram and swap yet?
would be very interesting....
__________________
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Nobody likes us but we dont care....
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2010-08-22
, 11:48
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Posts: 489 |
Thanked: 404 times |
Joined on Dec 2009
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#50
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Originally Posted by firstknight
It usually happens to me only when my device's uptime is more than 5/6 days. A reboot solves it perfectly, but in your case a reflash might help.
great to hear... but now a days.. me having some problem.. especially web browsing.. it tends to hang and then said web browser is not responsive the close.... that is only 3 running apps.... sigh... anyone expereinceing this?
Yeah.. and there's a laundry list of "if"'s that follow that statement including "if it was written by apple".
To me that's not truly multi-tasking... you should be able to run *any* two or more applications to qualify for me.
If I've helped you or you use any of my packages feel free to help me out.
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