[MC-61988] Minecraft client (local and local server) eperience "can't keep up" problem frequently and regularly

Put the summary of the bug you're having here:

What I expected to happen was normal lag-free operation of the server and client on my machine irrespective of other bugs.

What happened was frequent and often fairly regular lag of the client and server for up to 10 seconds or so, happening approximately every 5 minutes for the server, and more often for the client separately. It results in me being unable to do things for that amount of time followed by a spontaneous resuming of tasks. Went to minecraftforum.net for help in a chat room, they were unable to diagnose the issue specifically. Has been prevalent since 1.7.2 or earlier (I know at least 1.7.2 for sure).

Steps to Reproduce:
1. Run Minecraft
2. Load world (literally any world)/connect to my home-made bukkit gui server
3. Wait for it
4. Check log, find "can't keep up" error and notice in-game unresponsiveness for 3-10 seconds at a time.

Related issues

duplicates

MC-44385 Server lag: Running 20215ms behind, skipping 404 tick(s)

Attachments

latest.log

Comments

migrated 2014-07-14T22:07:21Z

[media]

migrated 2014-07-19T19:34:23Z

Affects 14w29a
http://i.imgur.com/YUvDcll.png
[1 player,2 gigs of ram]

migrated 2014-07-19T23:03:36Z

Did you get the same problem with a clean install as well?

ZaCloud 2014-08-26T03:14:15Z

Happening in a New single-player World on 1.8 pre-2 as well. Block lag, general lag, and the message in the background that it "can't keep up" and is skipping ticks.

migrated 2014-08-26T03:20:28Z

Still happens with new versions. Seems to happen with all versions on this machine. No idea what it could be besides strange hardware/firmware issue.

migrated 2014-09-18T02:18:53Z

I confirm it

migrated 2014-09-18T05:56:50Z

Duplicate of MC-46812

Arisa Bot 2020-06-30T23:13:24Z

Thank you for your report!
We're tracking this issue in MC-44385, so this ticket is being resolved and linked as a duplicate.

If you would like to add a vote and any extra information to the main ticket it would be appreciated.

If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.

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