OpenJDK Committer and SAPMachine Guy

Joined June 2017
Christoph Langer retweeted
SapMachine Releases 24.0.1, 21.0.7 and 17.0.15 are available now. Check it out on 👉sapmachine.io/👈
3
5
312
Christoph Langer retweeted
SapMachine 24 is ready and ships through all our known channels. 🚀github.com/SAP/SapMachine/re…
2
12
357
Christoph Langer retweeted
Linux 6.12 introduces scheduler extensions—enabling custom schedulers via eBPF! 🚀 Learn how we used this for concurrency testing in OpenJDK, stopping & starting threads inside the kernel. Don't miss the #FOSDEM2025 session with @parttimen3rd. 🔗 sap.to/6010xbQXp.
9
12
619
Christoph Langer retweeted
Struggling with Java profiling trade-offs?Stability vs. precision is a challenge! Learn how to combine JFR, eBPF probes, & async sampling for accurate profiling. Don't miss the #FOSDEM2025 talk from @BachorikJ and @parttimen3rd on the future of JVM! 🔗 sap.to/6017xjEKD.
7
14
570
Christoph Langer retweeted
Java’s Foreign Function & Memory API (JEP 454) is changing how we call native code! 🔥 In this session, we explore FFI internals, calling conventions, stack layouts & the future of Java-native integration. Don't miss it! #FOSDEM2025 🔗 sap.to/6018xjJsG.
7
5
292
Christoph Langer retweeted
The SapMachine January 2025 updates are available! 🥳
2
5
146
Christoph Langer retweeted
sapmachine.io July 2024 releases are out on all channels. Have fun patching.
4
4
555
Christoph Langer retweeted
Virtual Threads in @java have immense potential to change the way server applications run. But it will take time to mature, and there are a few pitfalls to be aware of: Visit github.com/SAP/SapMachine/wi… to read more.
1
25
2
75
6,974
Christoph Langer retweeted
SapMachine April 2024 update delivered. Find our binaries for 22.0.1, 21.0.3, 17.0.11 and 11.0.23 on sapmachine.io, hub.docker.com/_/sapmachine, repo1.maven.org/maven2/io/sa… or wherever you are used to consume from. 🙌
5
5
454
Christoph Langer retweeted
JMC 9.0 Release Candidate was just tagged! github.com/openjdk/jmc/tags It is getting closer...
2
7
23
3,981
Christoph Langer retweeted
Service Reminder: Did you already update to the latest SapMachine October updates? For instance latest and greatest SapMachine 21.0.1? It's all available in the well known channels... github.com/SAP/SapMachine/re…
2
5
509
Christoph Langer retweeted
SapMachine 21 Binaries are now available in all known channels. Happy Looming. 😊 github.com/SAP/SapMachine/re…
4
13
954
Terrible news: I just read here on Twitter that my JEP is cancelled – at Republic of Croatia
At OpenJDK Committers Workshop: @mreinhold, @pressron: sorry, but there will never be an improved AGCTv2 in OpenJDK! The one and only OpenJDK profiler will be JFR. @kuksenk0: the Oracle performance team uses JFR several times a year but AsyncProfiler/AGCT several times per day...
2
4
18
8,525
Christoph Langer retweeted
At OpenJDK Committers Workshop: @mreinhold, @pressron: sorry, but there will never be an improved AGCTv2 in OpenJDK! The one and only OpenJDK profiler will be JFR. @kuksenk0: the Oracle performance team uses JFR several times a year but AsyncProfiler/AGCT several times per day... – at Santa Clara, CA
9
14
1
55
21,610
Christoph Langer retweeted
Learn how to do a basic GC analysis to troubleshoot a problem with SAPMachine and our custom JFR configurations: an insightful guide by our colleague Andreas Steiner over on the @SAPCommunity blogs (blogs.sap.com/2023/05/05/gc-…)
5
11
1,590
Christoph Langer retweeted
Mission completed: SapMachine April 2023 CPU releases 20.0.1, 17.0.7 and 11.0.19 delivered to all channels. Check it out: sapmachine.io/
4
1
10
1,431
Christoph Langer retweeted
Did you already try out the latest release of SapMachine 20 and prepare for the (GA) arrival of Loom in September? The binaries are available on all usual channels. Now with full MUSL/Alpine support. github.com/SAP/SapMachine/re…
1
7
546
AsyncGetCallTrace is the base of many profilers, but how can we test it automatically to make sure it's correct? I'll explore a layered approach in my newest blog post mostlynerdless.de/blog/2023/…
2
8
26
2,801
Happy #piDay2023 from me and @SweetSapMachine :)
4
7
641
Christoph Langer retweeted
Monitoring JVM and System metrics with SapMachine Vitals, by @tstuefe, courtesy of @SweetSapMachine #SAPOpenSource #opensource ➡️ sap.to/60183Wx4C
9
6
661