华为 4G模块 AT指令
2019-12-21 20:17:29
1.7MB
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英文版：Oracle Wait Interface: A Practical Guide to Performance Diagnostics & Tuning
内容简介
《Oracle Wait Interface性能诊断与调整实践指南》详细讲述了如何充分利用革命性的Oracle Wait Interface（OWI）快速确定并解决数据库系统的主要问题和瓶颈，从而极大地提高工作效率。书中包含所有OWI特性的大量细节，包括等待事件视图及其应用，以及扩展的SQL追踪文件。这些宝贵资源有助于您充分利用这个最先进的诊断工具，从而将处理时间减到最少。
《Oracle Wait Interface性能诊断与调整实践指南》主要内容：
使用等待事件统计信息确定性能问题；
监控会话级等待事件，并收集历史数据，以确定根本问题；
解释与I/O有关的常见等待事件；
诊断并解决与锁和串行化相关的问题
分析与延迟相关的等待事件；
确定秘解决Oracle Real Application Clusters环境中的瓶颈；
学习Oracle Database 10g中性能诊断和调整的有效方法。
2019-12-21 20:10:16
38.23MB
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NFI接口的详细协议，对NFC开发很有用，要的下载。
2019-12-21 20:06:16
1.1MB
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MIPI Alliance Specification for Camera Serial Interface 2 (CSI-2)
2019-12-21 20:00:06
2.8MB
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本文档描述了UBX、NMEA和RTCM协议，并作为U-Blox ZED-F9P高精度定位接收机的参考手册。
2019-12-21 19:58:39
3.33MB
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The Camera Serial Interface 2 specification defines an interface between a peripheral device (camera) and a
host processor (baseband, application engine).
2019-12-21 19:30:34
1.96MB
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苹果配件开发，《Accessory Interface Specification R22》，内涵iap2开发协议
2019-12-21 18:56:39
26.19MB
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包含 apple 外设开发相关的 mfi认证相关内容以及IAP2协议规范，开发方式。
2019-12-21 18:55:42
32.27MB
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In this book, I describe the Linux programming interface—the system calls, library
functions, and other low-level interfaces provided by Linux, a free implementation
of the UNIX operating system. These interfaces are used, directly or indirectly, by
every program that runs on Linux. They allow applications to perform tasks such as
file I/O, creating and deleting files and directories, creating new processes, executing
programs, setting timers, communicating between processes and threads on the
same computer, and communicating between processes residing on different
computers connected via a network. This set of low-level interfaces is sometimes
also known as the system programming interface.
Although I focus on Linux, I give careful attention to standards and portability
issues, and clearly distinguish the discussion of Linux-specific details from the discussion
of features that are common to most UNIX implementations and standardized
by POSIX and the Single UNIX Specification. Thus, this book also provides a comprehensive
description of the UNIX/POSIX programming interface and can be
used by programmers writing applications targeted at other UNIX systems or
intended to be portable across multiple systems.
2019-12-21 18:52:17
9.71MB
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QI WPC 无线充电规范标准V1.2.3 (Parts 1 and 2: Interface Defintions)
The Qi Wireless Power Transfer System
Power Class 0 Specification
2019-12-21 18:52:08
3.73MB
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