Jvm tuning for low latency application & CassandraQuentin Ambard
G1, CMS, Shenandoah, or Zing? Heap size at 8GB or 31GB? compressed pointers? Region size? What is the maximum break time? Throughput or Latency... What gain? MaxGCPauseMillis, G1HeapRegionSize, MaxTenuringThreshold, UnlockExperimentalVMOptions, ParallelGCThreads, InitiatingHeapOccupancyPercent, G1RSetUpdatingPauseTimePercent, which parameters have the most impact?
Garbage First Garbage Collector (G1 GC) - Migration to, Expectations and Adva...Monica Beckwith
Learn what you need to know to experience nirvana in the evaluation of G1 GC even if your are migrating from Parallel GC to G1, or CMS GC to G1 GC
You also get a walk through of some case study data
G1 GC
Jvm tuning for low latency application & CassandraQuentin Ambard
G1, CMS, Shenandoah, or Zing? Heap size at 8GB or 31GB? compressed pointers? Region size? What is the maximum break time? Throughput or Latency... What gain? MaxGCPauseMillis, G1HeapRegionSize, MaxTenuringThreshold, UnlockExperimentalVMOptions, ParallelGCThreads, InitiatingHeapOccupancyPercent, G1RSetUpdatingPauseTimePercent, which parameters have the most impact?
Garbage First Garbage Collector (G1 GC) - Migration to, Expectations and Adva...Monica Beckwith
Learn what you need to know to experience nirvana in the evaluation of G1 GC even if your are migrating from Parallel GC to G1, or CMS GC to G1 GC
You also get a walk through of some case study data
G1 GC
오딘: 발할라 라이징 MMORPG의 성능 최적화 사례 공유 [카카오게임즈 - 레벨 300] - 발표자: 김문권, 팀장, 라이온하트 스튜디오...Amazon Web Services Korea
서비스 런칭을 위해 라이온하트와 카카오게임즈가 어떻게 최적 성능의 인스턴스를 선택하고, Windows 운영 체제를 최적화하며, 왜 Amazon Aurora를 기본 데이터베이스로 채택하였는지를 설명합니다. 또한, 출시부터 운영까지의 과정에서 MMORPG가 어떻게 AWS 상에서 설계되고, 게임 서버 성능을 극대할 수 있었는지에 대해 전달해드립니다.
오딘: 발할라 라이징 MMORPG의 성능 최적화 사례 공유 [카카오게임즈 - 레벨 300] - 발표자: 김문권, 팀장, 라이온하트 스튜디오...Amazon Web Services Korea
서비스 런칭을 위해 라이온하트와 카카오게임즈가 어떻게 최적 성능의 인스턴스를 선택하고, Windows 운영 체제를 최적화하며, 왜 Amazon Aurora를 기본 데이터베이스로 채택하였는지를 설명합니다. 또한, 출시부터 운영까지의 과정에서 MMORPG가 어떻게 AWS 상에서 설계되고, 게임 서버 성능을 극대할 수 있었는지에 대해 전달해드립니다.
Introduction to GraalVM and Native ImageKoichi Sakata
2019/08/23 JVM Language Summit Report Event at KanJava JUG
https://kanjava.connpass.com/event/139770/
This slide is about GraalVM, especially SubstrateVM that is able to generate native images.
【DLゼミ】XFeat: Accelerated Features for Lightweight Image Matchingharmonylab
公開URL：https://arxiv.org/pdf/2404.19174
出典：Guilherme Potje, Felipe Cadar, Andre Araujo, Renato Martins, Erickson R. ascimento: XFeat: Accelerated Features for Lightweight Image Matching, Proceedings of the 2024 IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR) (2023)
概要：リソース効率に優れた特徴点マッチングのための軽量なアーキテクチャ「XFeat（Accelerated Features）」を提案します。手法は、局所的な特徴点の検出、抽出、マッチングのための畳み込みニューラルネットワークの基本的な設計を再検討します。特に、リソースが限られたデバイス向けに迅速かつ堅牢なアルゴリズムが必要とされるため、解像度を可能な限り高く保ちながら、ネットワークのチャネル数を制限します。さらに、スパース下でのマッチングを選択できる設計となっており、ナビゲーションやARなどのアプリケーションに適しています。XFeatは、高速かつ同等以上の精度を実現し、一般的なラップトップのCPU上でリアルタイムで動作します。
セル生産方式におけるロボットの活用には様々な問題があるが，その一つとして 3 体以上の物体の組み立てが挙げられる．一般に，複数物体を同時に組み立てる際は，対象の部品をそれぞれロボットアームまたは治具でそれぞれ独立に保持することで組み立てを遂行すると考えられる．ただし，この方法ではロボットアームや治具を部品数と同じ数だけ必要とし，部品数が多いほどコスト面や設置スペースの関係で無駄が多くなる．この課題に対して音𣷓らは組み立て対象物に働く接触力等の解析により，治具等で固定されていない対象物が組み立て作業中に運動しにくい状態となる条件を求めた．すなわち，環境中の非把持対象物のロバスト性を考慮して，組み立て作業条件を検討している．本研究ではこの方策に基づいて，複数物体の組み立て作業を単腕マニピュレータで実行することを目的とする．このとき，対象物のロバスト性を考慮することで，仮組状態の複数物体を同時に扱う手法を提案する．作業対象としてパイプジョイントの組み立てを挙げ，簡易な道具を用いることで単腕マニピュレータで複数物体を同時に把持できることを示す．さらに，作業成功率の向上のために RGB-D カメラを用いた物体の位置検出に基づくロボット制御及び動作計画を実装する．
This paper discusses assembly operations using a single manipulator and a parallel gripper to simultaneously
grasp multiple objects and hold the group of temporarily assembled objects. Multiple robots and jigs generally operate
assembly tasks by constraining the target objects mechanically or geometrically to prevent them from moving. It is
necessary to analyze the physical interaction between the objects for such constraints to achieve the tasks with a single
gripper. In this paper, we focus on assembling pipe joints as an example and discuss constraining the motion of the
objects. Our demonstration shows that a simple tool can facilitate holding multiple objects with a single gripper.
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