I had all the problems detailed in the first post. SSP worked fine, SMP stopped working for me after a couple days. However, I have installed Optifine Standard and that has fixed the problem for me. I hope this works for others.
Update: Although the problem was fixed I still get crashes every 5-10 mins. The 'problematic frame' in the error log has changed. As far as I can gather, when Minecraft was updated from 1.7 to 1.8, they added "multi-texturing" or something. Whatever that's supposed to do, it didn't seem to change the look of things. And that makes old video cards take a ****. Quite unfortunate, and wouldn't it be nice if Mojang gave us the option of disabling this.
Guys i found a fix! If you are having this issue which i was you need to install or re-install a driver for your computers network card. I didn't have one installed so at random times i would have this exact issue. Tell me if this helped u guys or if you need help figuring out how to re-install a driver.
I have the same problem with lag. Every 5 seconds or so, it will lag for a second. I have a 16gig quad core win 7 gaming rig. Every game works fine but Minecraft. I have only had the game for a few weeks, and it has never worked right. I have no mods, tried the optifine before current update, that didnt help either.
I have tried every suggestion I found here on the forums. I even did a clean win 7 install. I have only played single player, no need to even try multi. I hope this gets fixed soon.
There has to be some kind of common denominator with the people this is happenning to, since its not happenning to everyone.
I'm going to see if I can get this bug by playing SMP with a server connection through 127.0.0.1, and with such a connection, it can be absolutely guaranteed there will be no connection problems. I will compare and report SSP vs. SMP behaviour if it is possible to do this, and if it is possible to produce the bug while being (obviously) the only player logged into an SMP server. From the above, it sounds to me like Minecraft lacks ordinary reconnecting logic, which is often implemented at the hardware level, which is why this bug is so intermittent: Some connections are good enough not to drop anything, and so reconnection isn't required, while other connections have reconnecting built in. It is also very likely that most gaming software (Minecraft would be an exception) have reconnecting logic or work with UDP (which doesn't have "connections") It'll be several days, though because I'm still new to Minecraft. In my test, I'm expecting to find that SSP and SMP behave in an identical manner because:
a ) A connection to 127.0.0.1 is the best one you can get (if you don't understand, completely isolate your computer, ping 127.0.0.1 and see what happens
b ) If I were Notch, I would implement SSP by creating an SMP server at 127.0.0.1 and connecting the client program to it in the first place. If this is what he has done, then the behaviour of SSP and SMP on my system should be identical, even if I do get this lag problem.
As a final note, it is not unique to the PC, but has been observed on the XBox as well. I didn't hear any complaints though, only an avalanche of laughter (and coarse language, be warned. Also, I absolutely disclaim that posting this video here is an endorsement of the Minecraft expertise of these guys):
Before you see the lag problem, the portal went out while a player was standing between the texture panes. Unfortunately the player was trapped between the pane positions in the portal and could not move. This is a real bug and I'd be surprised if it weren't already being discussed elsewhere. 6:23 and 17:10 seems to demonstrate the lag, but check out 20:50, especially. Is that the bug we're talking about, or do powered rail mine carts go fast enough to break normal chunk loading? (Also, if you're curious as to why everyone seems to hate this "Gavin", he's usually the griefer. He even makes griefing tutorials.)
I hav this problem as well, but i play in single player and only one world lags. i hav the mod "Tale of Kingdoms" loaded on this world, so i dont know if that is affecting it or not. my other worlds hav minimal lag and doesnt affect game play as much as it is slightly annoying. but in my Tale of Kingdoms world i cant move, place/destroy blocks, etc and it takes a little over a minute to load anything during game play. i would really like to hav my own kingdom so PLEASE help!!
I heard that Minecraft 1.3 SSP was going to go to the server+client setup that I had described, so I guess Minecraft single player had not been so designed from the start. I'm currently playing an SMP mode game with a vanilla server (I had to /op myself before I could break or place a block, but I could kill mobs. /whitelist and /gamemode had no effect (but /gamemode 1 let me fly). I laughed at my misfortune while trying "/kill featherwinglove" which IMHO really really needs to be in every "Ways To Die In Minecraft" video on Youtube!)
So far in Release 1.2.5 (both client and server) Java 6u33, it is lagging hard only when it is obviously loading new chunks.
Update 1: I made this post while in the initial hunger period (i.e.: my character found no edible animals in his bizarre spot of swamp next to biome), so I busted some grass and planted a garden next to the nearest water. Then I realized, hey, I can hydrate it by /toggledownfall in the server console. After that, I realized that since the garden was next to water, it made no difference. I suspect this lag is Java 7 related, so I am going to try Java 7 again. When I was playing the Classic 0.30 applet while waiting for Paypal to get their zits sorted out w.r.t. my bank account (which took so long, the transaction went off my recent activity list before it was done!) I had a very different problem: clicks would randomly trigger the game menu (i.e. Esc).
Update 1b: I found a new (to me) bug where when switching from other apps (i.e. my browser in which I am typing this post) to the Minecraft client, it doesn't redraw the game windows innards, which I successfully worked around by resizing the window. I think this happened to me in SSP, but I killed it because I thought it had crashed. I can't repeat it consistently, so I'll pay attention for it in SSP and see if it works the same way.
I had all the problems detailed in the first post. SSP worked fine, SMP stopped working for me after a couple days. However, I have installed Optifine Standard and that has fixed the problem for me. I hope this works for others.
Optifine turned out to be a flat-out disaster for me. My results were about the worst possible: Slight improvements in performance for the first few minutes and then after a few hours, I was lagging so hard, I could no longer play, even with graphics settings tuned worse-than-vanilla. I had to kill it, there was no other option left. This was on SSP; I didn't have the chance to try it SMP.
Using a network sniffer reveals a lot of TCP retransmissions to and from the server, which indicates packet loss. This doesn't happen with any other communication, just minecraft SMP. Googling "java tcp retransmissions" reveals... Not a lot to me personally, because I'm not a java programmer. Packet buffering is mentioned in some of the results, but when I used the tcpbuffer program nothing changed.
I've tried playing from another computer and experienced the same symptoms, and also turned off the snooper but that didn't help. This problem existed long before the snooper was implemented, and nothing in the setting affects it.
Something interesting I found: apparently this problem isn't for *all* servers. There was one server (which is now gone unfortunately) where I didn't experience this problem almost at all, except when a mob or a player took damage. I don't know why that was or how to find another such server. I think it had to do with the hosting company - something like redstone hosting - because the server moved several times but kept the hosting company; when it was changed the problem worsened.
Rollback Post to RevisionRollBack
Getting insane lag on multiplayer? Raise awareness. Post here.
I have tried every suggestion I found here on the forums. I even did a clean win 7 install. I have only played single player, no need to even try multi. I hope this gets fixed soon.
There has to be some kind of common denominator with the people this is happenning to, since its not happenning to everyone.
a ) A connection to 127.0.0.1 is the best one you can get (if you don't understand, completely isolate your computer, ping 127.0.0.1 and see what happens
b ) If I were Notch, I would implement SSP by creating an SMP server at 127.0.0.1 and connecting the client program to it in the first place. If this is what he has done, then the behaviour of SSP and SMP on my system should be identical, even if I do get this lag problem.
As a final note, it is not unique to the PC, but has been observed on the XBox as well. I didn't hear any complaints though, only an avalanche of laughter (and coarse language, be warned. Also, I absolutely disclaim that posting this video here is an endorsement of the Minecraft expertise of these guys):
Before you see the lag problem, the portal went out while a player was standing between the texture panes. Unfortunately the player was trapped between the pane positions in the portal and could not move. This is a real bug and I'd be surprised if it weren't already being discussed elsewhere. 6:23 and 17:10 seems to demonstrate the lag, but check out 20:50, especially. Is that the bug we're talking about, or do powered rail mine carts go fast enough to break normal chunk loading? (Also, if you're curious as to why everyone seems to hate this "Gavin", he's usually the griefer. He even makes griefing tutorials.)
Terry
So far in Release 1.2.5 (both client and server) Java 6u33, it is lagging hard only when it is obviously loading new chunks.
Update 1: I made this post while in the initial hunger period (i.e.: my character found no edible animals in his bizarre spot of swamp next to biome), so I busted some grass and planted a garden next to the nearest water. Then I realized, hey, I can hydrate it by /toggledownfall in the server console. After that, I realized that since the garden was next to water, it made no difference. I suspect this lag is Java 7 related, so I am going to try Java 7 again. When I was playing the Classic 0.30 applet while waiting for Paypal to get their zits sorted out w.r.t. my bank account (which took so long, the transaction went off my recent activity list before it was done!) I had a very different problem: clicks would randomly trigger the game menu (i.e. Esc).
Update 1b: I found a new (to me) bug where when switching from other apps (i.e. my browser in which I am typing this post) to the Minecraft client, it doesn't redraw the game windows innards, which I successfully worked around by resizing the window. I think this happened to me in SSP, but I killed it because I thought it had crashed. I can't repeat it consistently, so I'll pay attention for it in SSP and see if it works the same way.
Terry
Optifine turned out to be a flat-out disaster for me. My results were about the worst possible: Slight improvements in performance for the first few minutes and then after a few hours, I was lagging so hard, I could no longer play, even with graphics settings tuned worse-than-vanilla. I had to kill it, there was no other option left. This was on SSP; I didn't have the chance to try it SMP.
Terry
Please click to help my dragons :3
I've tried playing from another computer and experienced the same symptoms, and also turned off the snooper but that didn't help. This problem existed long before the snooper was implemented, and nothing in the setting affects it.
Something interesting I found: apparently this problem isn't for *all* servers. There was one server (which is now gone unfortunately) where I didn't experience this problem almost at all, except when a mob or a player took damage. I don't know why that was or how to find another such server. I think it had to do with the hosting company - something like redstone hosting - because the server moved several times but kept the hosting company; when it was changed the problem worsened.
....
Damn this mountain is taking too long ta take down....