I always thought that the OS benefited from beeing reestarted regularly, when I feel my PowerBook is running slow i do a reestart and think it helps. What do you people think about it?
I reestart every 2.-3. day and i do a permissions repair evry 2. week or so.
I think that uptime is only half the equation as a useful stat anyhow. Most systems can get huge uptimes if they aren't used, or are used for only a couple tasks (ie, servers).
A family system with multiple simultaneous users with activities ranging from syncing to gaming, running every app out there, often all at once, with an uptime of 1 month is much more impressive to me than a server with an uptime of 1 month. Making a system so it can't be abused in one thing, making a system so it can take the abuse is another thing.
wont leaving it on constantly just wear the computer down faster...or maybe turning it off and on hurts it more because it has to star and stop all the moving parts...which is best?
But the only mechanical changes that happen when you shut off (parking of the drives and spin down of the fans) happens when your computer sleeps if you leave it on. A deep sleep also shuts off the CPU, so the whole thing cools off as well.
These days, I really don't think it makes any difference as long as you're not restarting every half hour. Now, if you're running servers, you've got to stay online so that's why I never shut down!
No, repair permissions is unnecessary. They shouldn't be changing unless you are installing a bunch of sketchy software all the time.
As for leaving it on all the time, it's not totally true. My machine is in "sleep" mode when I don't use it. The system powers down for the most part. All that's up is some power to the RAM to keep the current state in memory. I suppose you can call that cheating, but really, even suspend mode can screw up systems after a while and require a reboot. That's why good memory management is so critical for an OS.
There's an iMac in our Manufacturing Lab that has not been shut down or rebooted since late last summer. It sits in a corner and does four things; prints serial number labels, prints CD's, runs a constant iChat session and plays random iTunes out of a 40 GB library. It's covered with a layer of dust and grime so much that the CRT has a round wiped off area so the folks in the lab can see the serial numbers. The tunes play 24/7 through a really nice set of speakers and a subwoofer. The OS is so out of date that every once and a while I see the automatic updater window show up and just about every known Apple software app needs updating, we just dismiss the window and let the Mac run on.
In a shop full of pee cees it has made believers out of many people here.
Next time I'm in the lab I'll grab the stats off it - it's on a UPS so it has quite literally been running nonstop since the day we moved into that lab, back in August.
Only 5 days on this box, 64 days on the Linux server (which is when I installed it in a new case).
The record for me was 488 days - just shy of Linux's 497 maximum. The CPU fan on the Linux box died and the BIOS alarm went off while I was at work. My girlfriend panicked and called me, and I had to powerdown the server remotely. I was not a happy man.
I hear there is a command that will show how many hours are on the computer, so you can see how used it is.
Anyone know that command?
Yes, just type "uptime" in terminal.
I'm up to 11 days. I had been having to restart, so I wasn't going over a couple days, for a while. I think my record was 50, or so. I'm hoping I can stay up until 10.3.9, or Tiger!!! OS X is such a brilliant OS. I can never get over the joy and simplicity in using it.
I haven't had to restart a machine due to a crash in months. I got to 113 days on my G4 Quicksilver, and finally shut it down to install a new hard drive a few weeks back. My G5 got re-started yesterday because I was installing the OS on an iMac drive I'd pulled. (dead CD drive) The current uptime king right now is my Powerbook, which is at 46 days.
2. Choose File -> Save As, and pick a location, like your desktop.
3. Choose "Execute this command", from the save as window, and type the command you want terminal to execute in this case, uptime.
4. Turn on, if it is not already selected, "Execute command in a shell" and save the file.
An Icon should appear on your desktop with the name you gave it. You should be able to execute the terminal command 'uptime' just by double clicking the Icon.
Comments
used to be longer.
I always thought that the OS benefited from beeing reestarted regularly, when I feel my PowerBook is running slow i do a reestart and think it helps. What do you people think about it?
I reestart every 2.-3. day and i do a permissions repair evry 2. week or so.
Is this totaly unnecessary?
A family system with multiple simultaneous users with activities ranging from syncing to gaming, running every app out there, often all at once, with an uptime of 1 month is much more impressive to me than a server with an uptime of 1 month. Making a system so it can't be abused in one thing, making a system so it can take the abuse is another thing.
The tempurature changes as well as the mechanical changes in turning it on and off are not good.
These days, I really don't think it makes any difference as long as you're not restarting every half hour. Now, if you're running servers, you've got to stay online so that's why I never shut down!
No, repair permissions is unnecessary. They shouldn't be changing unless you are installing a bunch of sketchy software all the time.
As for leaving it on all the time, it's not totally true. My machine is in "sleep" mode when I don't use it. The system powers down for the most part. All that's up is some power to the RAM to keep the current state in memory. I suppose you can call that cheating, but really, even suspend mode can screw up systems after a while and require a reboot. That's why good memory management is so critical for an OS.
It's true my permissions don't usaly change that much (the only serious ones i have is when i update iphoto)
I am always doing what I can to keep my system uptimal (tips on how to do that would be great) because my PowerBook is not new and often working hard
In a shop full of pee cees it has made believers out of many people here.
Next time I'm in the lab I'll grab the stats off it - it's on a UPS so it has quite literally been running nonstop since the day we moved into that lab, back in August.
Joe
9:15 up 142 days, 23:35, 3 users, load averages: 0.02 0.03 0.00
Uptime for G4 Xserve
9:13 up 15 days, 3:47, 3 users, load averages: 0.18 0.21 0.10
Uptime for Sun V100 (Webserver)
9:12am up 186 day(s), 50 min(s), 1 user, load average: 0.02, 0.09, 0.10
Uptime for old Alpha server running image setter
OpenVMS V6.2-1H3 on node MHEAX1 31-MAR-2005 09:44:20.97 Uptime 813 11:20:13
This system was only reboots when we have a power failure.
Dobby.
Originally posted by tink
2:01 up 643,453,993,334 days, 19:22, 1 user, load averages: 0.19 0.08 0.07
Woops. I mean
2:01 up 34 days, 19:22, 1 user, load averages: 0.19 0.08 0.07
The record for me was 488 days - just shy of Linux's 497 maximum. The CPU fan on the Linux box died and the BIOS alarm went off while I was at work. My girlfriend panicked and called me, and I had to powerdown the server remotely. I was not a happy man.
Anyone know that command?
Originally posted by sroach
I hear there is a command that will show how many hours are on the computer, so you can see how used it is.
Anyone know that command?
uptime?
Originally posted by sroach
I hear there is a command that will show how many hours are on the computer, so you can see how used it is.
Anyone know that command?
Yes, just type "uptime" in terminal.
I'm up to 11 days. I had been having to restart, so I wasn't going over a couple days, for a while. I think my record was 50, or so. I'm hoping I can stay up until 10.3.9, or Tiger!!!
Mac OSX Hint:
1. Open a new terminal window.
2. Choose File -> Save As, and pick a location, like your desktop.
3. Choose "Execute this command", from the save as window, and type the command you want terminal to execute in this case, uptime.
4. Turn on, if it is not already selected, "Execute command in a shell" and save the file.
An Icon should appear on your desktop with the name you gave it. You should be able to execute the terminal command 'uptime' just by double clicking the Icon.
Brought to you by Mac OSX Hints.