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Setting an artificially high heap size can then end up with an application with a relatively high memory footprint that is mostly garbage. Java prefers to only GC infrequently, or if it has to, and so prefers to allocate new memory vs reusing old memory. It will help if the application is legitimately out of memory, but if it isn't it can actually have negative consequences. While it is possible to increase the 512mb memory limit, I think it should be a measure of last resort. The high variance in plugin installations between users made it difficult to identify exactly how many problems there were and where they were.
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With the new animation code using so much memory, users with too many bad plugins also noticed performance issues, even on the newer launcher. We have in total allocated 512mb at the JVM for the entire client, which leaves conservatively about 150mb of memory for all 3rd party plugins. The pluginhub plugins vary in quality wildly, and some of them consume lots of memory.
#Runescape classic android install
As you may know, it is possible to install 3rd party plugins into RuneLite via the pluginhub. This problem compounded badly with 3rd party plugins. Notably it both uses a large amount of memory and also causes a large number of allocations. This system was used for the first time with the release of ToA, and the code for it is the cause of the GC pressure.
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This new system allows Jagex to make much more fine-grained animations with smoother movements, and take advantage of the full 50FPS the client usually runs at - which most animations do not.
#Runescape classic android update
In update 202 from last December, Jagex added a new-to-OSRS animation system. The launcher automatically updates the client, but there is no functionality to update the launcher. A common misconception is that the launcher automatically updates itself, but that is not the case. If you still do have an old launcher (check the Info panel in the client), it can be a good idea to update it due to these GC changes - even though we do believe the problems to be fixed even on the older launchers. This is not really a solution, and is instead trying to solve a symptom of the real problem, but on sufficiently powerful machines worked for some people. G1 runs faster (that is, releases memory, faster) as well as pauses for a shorter amount of time (less frame drops), so is a good stop gap against type 2 pressure. The newer launchers use the newer G1 garbage collector, while the 1.x launcher uses Concurrent Mark Sweep.
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So while there is memory available to be released, and potentially even free memory available, the process of releasing it is slow enough that it causes pauses whenever the GC is run.Īfter identifying the GC pressure issues fairly early on after the update, we began recommending users update their launcher if they are on one of the old pre-2.0 launchers (1.6, 1.5, and older). The garbage collector must keep track of these many different small allocations and handle releasing all of them, which is computationally expensive.
The second is caused by many small allocations.
Since most of the memory is in use, it is a difficult and slow process, leading to long pauses and lag. The garbage collector will pause the client until it is able to find enough memory to release to fulfil each allocation. It becomes difficult to allocate additional memory since it often first require the garbage collector to run. The first is caused by there being very little free memory. There are two different types of pressure which we will cover: The cause of the lag issues have been due to Java garbage collection pressure. Note that this post is about client lag, which is the client dropping frames, and not network lag, which is the time between an action being done and the server receiving the action, nor server lag, which is when the server skips ticks, causing time to essentially stop. We now feel like we've identified and fixed the root cause, which this post is about. We did not have good answers for players at that time due to the confusion of receiving so many error reports, often conflicting, at the same time. This is a bit of a tech blog about the ToA release and the stability issues the client has been having, feel free to skip it if that isn't your thing.Īfter the release of ToA on Aug 24 we saw a large number of reports from users about the client destabilizing in ToA, either crashing, or running with low FPS.
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