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[1. 14. 4+] TPS detection

hao145245

I found it on wiki on August 6th. I searched it on Station B, planetminecraft and modrinth and found that no one had done it, so I recorded it.

Principle^[1]

The output of the /debug stopcommand added in Java version 1.3.1 (12w27a) through/execute store result... is the average TPS during the entire analysis process.

/debug startwill start a new profiler session, and the session can be ended with the/debug stop command

Therefore, we can use /schedule^[2] to create a plan for /execute store result ... run debug stopthat is executed every20tick to detect TPS

After testing, if the above interval is lower than 15tick, it will not be detected (the error is large). 20tick can take into account both speed and accuracy.

version limit

Permission level

Why is it 1.14.4+? Since 1.14.4-pre4, function-permission-levelhas been added toserver.properties to control the permission level possessed by the function. ^[3]

The /debugcommand requires a permission level of3, and the default permission level of function is 2^[4], resulting in versions lower than 1.14.4-pre4unable to run/debug through the function.

schedule

1.15(19w38a)added thereplaceparameter to/schedule ^[5]. I don’t know if there will be any problems if the functions planned in the previous version are not overwritten.

Only when I wrote this did I realize that replace is the default. I wonder if the version before this was also the default.

tick

1.20.3(23w43a)added/tick^[6]. When the data pack is running, you can use /execute store result...to get the output of/tick query to get the target TPS^[7]. If the server changes the target TPS, it can be detected.

Singular and plural

1.21(24w21a)renamedfunctionstofunction. ^[8]

Example data pack

here is an example TPS detection data pack, which will display the current TPS and target TPS in the form of title, and supports 1.14.4+.

code

This is the code for 1.21+

# load.mcfunction

scoreboard objectives add tps_detection dummy

#1.20.3+
execute store result score target_tps tps_detection run tick query
#1.20.3-
#scoreboard players set target_tps tps_detection 20

#1.15+
schedule function tps-detection:update_tps 20 replace
#1.15- 1.14.4+
#schedule function tps-detection:update_tps 20

debug start

# update_tps.mcfunction

#1.15+
schedule function tps-detection:update_tps 20 replace
#1.15- 1.14.4+
#schedule function tps-detection:update_tps 20

execute store result score tps tps_detection run debug stop

#display
title @a title ["TPS:",{"score":{"name":"tps","objective":"tps_detection"}},"/",{"score":{"name":"target_tps","objective":"tps_detection"}}]


debug start

Demo

1.14.4

1.21.8

Actual combat

write on the back

The idea of ​​data pack detecting TPS came about when /tickwas added in1.20.3. At that time, I thought I could get TPS directly through the output of /tick query, and even wanted to get mspt, but it turned out that its output was the target TPS...

At that time, I was still thinking of getting it from the output of the command block, but the permission level required by /tickis3, which is completely unacceptable.

Then I thought of a way. The waiting time of /schedulehas the unit ofs, which is thought to be real time, but the game will convert it into tick

After discovering /debug, I thought that TPS could be detected with the data pack version, but it was not possible because of the permission level mentioned above.

However, the player can still manually obtain TPS (as shown below)

• Chinese Minecraft Wiki](https://zh.minecraft.wiki/w/Java版1.14.4-pre4)

---

1. See command/debug - Chinese Minecraft Wiki ↩︎

2. See command/schedule - Chinese Minecraft Wiki ↩︎

3. See [Java Edition 1.14.4-pre4 ↩︎

4. See Permission Level - Chinese Minecraft Wiki ↩︎

5. See 19w38a - Chinese Minecraft Wiki ↩︎

6. See 23w43a - Chinese Minecraft Wiki ↩︎

7. See command/tick - Chinese Minecraft Wiki ↩︎

8. See 24w21a - Chinese Minecraft Wiki ↩︎