Java 应用与开发 - Java 内存模型与分配机制
Java 内存模型 Java 程序内存运行分析 Java 内存管理建议 JVM 内存溢出和参数调优 当遇到 OutOfMemoryError 时该如何做? ▶ 常见的 OOM(Out Of Memory)内存溢出异常,就是堆内 存空间不足以存放新对象实例时导致。 ▶ 永久区内存溢出相对少见,一般是由于需要加载海量的 Class 数据,超过了非堆内存的容量导致。 ▶ 栈内存也会溢出,但是更加少见。 Java 内存模型 Java 程序内存运行分析 Java 内存管理建议 JVM 内存溢出和参数调优 当遇到 OutOfMemoryError 时该如何做? ▶ 常见的 OOM(Out Of Memory)内存溢出异常,就是堆内 存空间不足以存放新对象实例时导致。 ▶ 永久区内存溢出相对少见,一般是由于需要加载海量的 Class 数据,超过了非堆内存的容量导致。 ▶ 栈内存也会溢出,但是更加少见。 Java 内存模型 Java 程序内存运行分析 Java 内存管理建议 JVM 内存溢出和参数调优 当遇到 OutOfMemoryError 时该如何做? ▶ 常见的 OOM(Out Of Memory)内存溢出异常,就是堆内 存空间不足以存放新对象实例时导致。 ▶ 永久区内存溢出相对少见,一般是由于需要加载海量的 Class 数据,超过了非堆内存的容量导致。 ▶ 栈内存也会溢出,但是更加少见。0 码力 | 44 页 | 818.30 KB | 1 年前3JVM 内存模型
0 码力 | 1 页 | 48.42 KB | 1 年前3openEuler 21.03 技术白皮书
kernel 5.10 but also incorporated multiple new features such as live kernel upgrade and tiered memory expansion. These highlights improve multi-core performance and deliver thousand-core computing effort into advancing the ARM64 architecture, Advanced Configuration and Power Interface (ACPI), memory management, file systems, media, kernel documents, bug fixes, and code rebuild. Over the past decade kernel 5.10: In-depth optimizations for scheduling, I/O, and memory management • Tiered memory expansion etMem: unified management of various memory and storage media, and smooth expansion of system capacity0 码力 | 21 页 | 948.66 KB | 1 年前3openEuler 21.09 技术白皮书
kernel 5.10 and also incorporates multiple new features, such as live kernel upgrade and tiered memory expansion. These features improve multi-core performance and deliver the computing power of one responsible for enhancing the processor architectures, Advanced Configuration and Power Interface (ACPI), memory management, file systems, media, kernel documents, bug fixes, and code rebuilds. Over the past and jitter suppression for online services. Additionally, its innovative memory reclamation algorithm against out of memory (OOM) allows online services to run reliably based on their higher service0 码力 | 36 页 | 3.40 MB | 1 年前3监控Apache Flink应用程序(入门)
..................................................................................... 16 4.13.1 Memory................................................................................................. 7/ops/config.html#configuring-the-network-buffers 8 https://www.da-platform.com/blog/manage-rocksdb-memory-size-apache-flink? __hstc=216506377.c9dc814ddd168ffc714fc8d2bf20623f. 1550652804788.1550652804788 metrics you want to look at are memory consumption and CPU load of your Task- & JobManager JVMs. 4.13.1 Memory Flink reports the usage of Heap, NonHeap, Direct & Mapped memory for JobManagers and TaskManagers0 码力 | 23 页 | 148.62 KB | 1 年前3OpenShift Container Platform 4.9 节点
oc adm top pods $ oc adm top pods -n openshift-console NAME CPU(cores) MEMORY(bytes) console-7f58c69899-q8c8k 0m 22Mi console-7f58c69899-xhbgg 0m 25Mi 数量进行扩展的数量。扩展 pod 数量的默认值为 4%。 按 pod 百分比扩展的数量。按百分比扩展的默认值为 100%。 缩减 缩减策略示例 策略示例 name: hpa-resource-metrics-memory namespace: default spec: behavior: scaleDown: 1 policies: 2 - type: Pods 3 在 web 控制台中,您可以创建一个 pod 横向自动扩展(HPA),用于指定要在 Deployment 或 metadata: name: hpa-resource-metrics-memory namespace: default spec: ... minReplicas: 20 ... behavior: scaleDown: stabilizationWindowSeconds:0 码力 | 374 页 | 3.80 MB | 1 年前3OpenShift Container Platform 4.6 节点
oc adm top pods $ oc adm top pods -n openshift-console NAME CPU(cores) MEMORY(bytes) console-7f58c69899-q8c8k 0m 22Mi console-7f58c69899-xhbgg 0m 25Mi apiVersion: autoscaling/v2beta2 kind: HorizontalPodAutoscaler metadata: name: hpa-resource-metrics-memory namespace: default spec: 第 第 2 章 章 使用 使用 POD 23 1 2 3 4 5 6 7 8 9 10 11 指定扩展策略的方向,可以是 apiVersion: autoscaling/v2beta2 kind: HorizontalPodAutoscaler metadata: name: hpa-resource-metrics-memory namespace: default OpenShift Container Platform 4.6 节 节点 点 24 在本例中,当 pod 的数量大于 40 时,则使用基于百分0 码力 | 404 页 | 3.60 MB | 1 年前3Weblate 4.2 用户文档
to use. 翻译记忆库 Look at similar strings translated in past, see Memory Management [https://docs.python.org/3.7/c-api/memory.html#memory]. 词汇表 Displays terms from the project glossary used in the current application) or when bootstrapping translation for a new component using existing translations (translation memory). 参见 Keeping translations same across components Rate limiting To avoid abuse of the interface Some Weblate features will perform better with PostgreSQL. This includes searching and translation memory, which both utilize full-text features in the database and PostgreSQL implementation is superior0 码力 | 648 页 | 9.34 MB | 1 年前3httpd 2.4.23 中文文档
same value is used at many places in the configuration. Reduced memory usage Despite many new features, 2.4.x tends to use less memory than 2.2.x. New Modules mod_proxy_fcgi FastCGI Protocol backend request body as a response via the output filter stack. mod_slotmem_shm Provides a Slot-based shared memory provider (ala the scoreboard). mod_xml2enc Formerly a third-party module, this supports internationalisation objects, based on the previous implementation of the mod_ssl session cache. Providers using a shared-memory cyclic buffer, disk-based dbm files, and a memcache distributed cache are currently supported. Cache0 码力 | 2559 页 | 2.11 MB | 1 年前3httpd 2.4.25 中文文档
same value is used at many places in the configuration. Reduced memory usage Despite many new features, 2.4.x tends to use less memory than 2.2.x. New Modules mod_proxy_fcgi FastCGI Protocol backend request body as a response via the output filter stack. mod_slotmem_shm Provides a Slot-based shared memory provider (ala the scoreboard). mod_xml2enc Formerly a third-party module, this supports internationalisation objects, based on the previous implementation of the mod_ssl session cache. Providers using a shared-memory cyclic buffer, disk-based dbm files, and a memcache distributed cache are currently supported. Cache0 码力 | 2573 页 | 2.12 MB | 1 年前3
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