- It doesn't work with ErrorProne (https://github.com/google/error-prone/issues?q=sort%3Aupdate...) - you need a special plugin in your IDE for the generated classes to be visible and/or the code to be parsable - it…
That's kind of the idea of Caffeine, it has admission buffers, and it adapts automatically between LRU and LFU. The original algorithm is called Windiw TinyLFU (design https://github.com/ben-manes/caffeine/wiki/Design),…
> "will not work with no recourse" No, the CLI `--add-opens` CLI option will stay. In other words, applications will need to consciously enable the encapsulation-breaking stuff. Is that bad? Modern software moved to…
I take issue with the thing being a part of HexFormat. It should use hexformat, optionally. What if I want to dump the memory to binary or octal instead? The hexformat class itself could have been an adjustable…
For me the aha moment was to understand the logical order of SQL operations: https://blog.jooq.org/a-beginners-guide-to-the-true-order-of.... Never had a problem since.
Interestingly, no, the tag doesn't have to be in the formatting string. See https://news.ycombinator.com/item?id=29507511.
No, this is about log4j2 which is kinda new (2.0.0 was released 2014). Otherwise, yeah, this is terrible, especially since the tag doesn't even have to be in the formatting string.
For native binaries, we now have https://www.graalvm.org/reference-manual/native-image/, but it probably doesn't yet work nicely with game frameworks? Not sure. There are some engines, frameworks:…
...and they're missing out, that's exactly the message. By the way, I'd be shocked if Java 8 was still more than half of the running server-side JVMs. There's a lot of them for sure, but I'd be willing to bet it's gonna…
It's simply a completely different implementation. Some of the optimiization passes are the same, obviously, but overall it simply performs ... differently.
Correct! Inlining obviously costs CPU, code cache space, and makes the receiver method bigger so that it's less likely it will be inlined itself. If there ever is a decompilation occuring, the inlining efforts were…
Nice. Thanks. (For other viewers, all the non-standard maps I'm aware of are trying to avoid allocating those pesky Map.Entry objects, that's why they generally take up much less memory.)
That's because they used primitives, no? In that case also look at some other options: https://www.reddit.com/r/java/comments/r0b9o9/a_tale_of_java.... While I still think Koloboke in general is the fastest, I do agree…
Indeed, max bytecode count (FreqInlineSize and MaxInlineSize) and inlining depth (MaxInlineLevel). Your GC choice will also slightly modify the inlining decisions, and then obviously GraalVM will be completely different.
> i couldn't even inline my functions You could, manually :). Either way if they're hot, they're inlined. One common trick for open-addressing maps in Java I don't see in your implementations is to have an array of keys…
If it's not behind XX:+UnlockExperimentalVMOptions (or a preview/incubator module), it's considered stable and prod-ready, yes. Will there be fixes and improvements? Yes. Should you be afraid to use it for business? No,…
No, they use 12 on all of my devices. Maybe update your browser or something?
Automated ffi parser soon (TM) to be in standard Java: https://github.com/openjdk/panama-foreign/blob/foreign-jextr...
This, exactly. One added issue is that ZGC does NOT support compressed oops at all.
You misread that. It says that decompression is significantly faster than LZO. In fact, decompression speeds of up to 5 GB/s is one of the reasons LZ4 is so popular.
For complete cheers beginners who want to learn and understand the ideas of the game, I highly recommend buying an oldish engine, Chessmaster XI: Grandmaster Edition, as it contains a set of amazing, approachable…
Here's the smhasher output for XXH3 on an i9: https://pastebin.com/ryLN24Qy, the wyhash has its output in its readme. TLDR: XXH3 uses less cycles per key, by about 30%. The real throughput / latency need a more equal…
Genetic specialization (List<int>) is coming. See https://openjdk.java.net/projects/valhalla/. Not this year (value types will be first). But they're working in it really hard.
This, a million times. In my professional bubble Lombok is completely gone. I'll go as far and say that modern Java does not use Lombok. Smaller, focused libraries like Immutables or AutoValue, solve the problem of…
Mister White follows up on his ideas, but this seems to be unnecessary, at least from what I saw at his concert in Prague, Czech Republic, last year. Before the show one of his crewmen said to all the people to keep…
- It doesn't work with ErrorProne (https://github.com/google/error-prone/issues?q=sort%3Aupdate...) - you need a special plugin in your IDE for the generated classes to be visible and/or the code to be parsable - it…
That's kind of the idea of Caffeine, it has admission buffers, and it adapts automatically between LRU and LFU. The original algorithm is called Windiw TinyLFU (design https://github.com/ben-manes/caffeine/wiki/Design),…
> "will not work with no recourse" No, the CLI `--add-opens` CLI option will stay. In other words, applications will need to consciously enable the encapsulation-breaking stuff. Is that bad? Modern software moved to…
I take issue with the thing being a part of HexFormat. It should use hexformat, optionally. What if I want to dump the memory to binary or octal instead? The hexformat class itself could have been an adjustable…
For me the aha moment was to understand the logical order of SQL operations: https://blog.jooq.org/a-beginners-guide-to-the-true-order-of.... Never had a problem since.
Interestingly, no, the tag doesn't have to be in the formatting string. See https://news.ycombinator.com/item?id=29507511.
No, this is about log4j2 which is kinda new (2.0.0 was released 2014). Otherwise, yeah, this is terrible, especially since the tag doesn't even have to be in the formatting string.
For native binaries, we now have https://www.graalvm.org/reference-manual/native-image/, but it probably doesn't yet work nicely with game frameworks? Not sure. There are some engines, frameworks:…
...and they're missing out, that's exactly the message. By the way, I'd be shocked if Java 8 was still more than half of the running server-side JVMs. There's a lot of them for sure, but I'd be willing to bet it's gonna…
It's simply a completely different implementation. Some of the optimiization passes are the same, obviously, but overall it simply performs ... differently.
Correct! Inlining obviously costs CPU, code cache space, and makes the receiver method bigger so that it's less likely it will be inlined itself. If there ever is a decompilation occuring, the inlining efforts were…
Nice. Thanks. (For other viewers, all the non-standard maps I'm aware of are trying to avoid allocating those pesky Map.Entry objects, that's why they generally take up much less memory.)
That's because they used primitives, no? In that case also look at some other options: https://www.reddit.com/r/java/comments/r0b9o9/a_tale_of_java.... While I still think Koloboke in general is the fastest, I do agree…
Indeed, max bytecode count (FreqInlineSize and MaxInlineSize) and inlining depth (MaxInlineLevel). Your GC choice will also slightly modify the inlining decisions, and then obviously GraalVM will be completely different.
> i couldn't even inline my functions You could, manually :). Either way if they're hot, they're inlined. One common trick for open-addressing maps in Java I don't see in your implementations is to have an array of keys…
If it's not behind XX:+UnlockExperimentalVMOptions (or a preview/incubator module), it's considered stable and prod-ready, yes. Will there be fixes and improvements? Yes. Should you be afraid to use it for business? No,…
No, they use 12 on all of my devices. Maybe update your browser or something?
Automated ffi parser soon (TM) to be in standard Java: https://github.com/openjdk/panama-foreign/blob/foreign-jextr...
This, exactly. One added issue is that ZGC does NOT support compressed oops at all.
You misread that. It says that decompression is significantly faster than LZO. In fact, decompression speeds of up to 5 GB/s is one of the reasons LZ4 is so popular.
For complete cheers beginners who want to learn and understand the ideas of the game, I highly recommend buying an oldish engine, Chessmaster XI: Grandmaster Edition, as it contains a set of amazing, approachable…
Here's the smhasher output for XXH3 on an i9: https://pastebin.com/ryLN24Qy, the wyhash has its output in its readme. TLDR: XXH3 uses less cycles per key, by about 30%. The real throughput / latency need a more equal…
Genetic specialization (List<int>) is coming. See https://openjdk.java.net/projects/valhalla/. Not this year (value types will be first). But they're working in it really hard.
This, a million times. In my professional bubble Lombok is completely gone. I'll go as far and say that modern Java does not use Lombok. Smaller, focused libraries like Immutables or AutoValue, solve the problem of…
Mister White follows up on his ideas, but this seems to be unnecessary, at least from what I saw at his concert in Prague, Czech Republic, last year. Before the show one of his crewmen said to all the people to keep…