sas性能

mysql redo/binlog 放在ssd盘或SAS盘性能差异测试

测试参数：innodb_buffer_pool_size=90Ginnodb_flush_method=O_DIRECTinnodb_flush_log_at_trx_commit=1sync_binlog=1 测试结果：从上面的测试结果中很容易的可以发现，redo放在SSD和SAS盘上面的性能差异是非常大的，就算把redo修改成不...

SAS vs SSD对比测试MySQL tpch性能

早先已经做过一次OLTP性能对比测试：SAS vs SSD各种模式下MySQL TPCC OLTP对比测试结果，这次做OLAP对比测试。对比测试结果见下：SSD设备相应的性能提升比例：测试环境：本文转自叶金荣51CTO博客，原文链接：...

LSI新版MegaRAID 3.5增强MegaRAID SAS/SATA适配器的性能

12月11日，LSI 公司宣布推出新版MegaRAID 3.5，其可显著提高 MegaRAID SAS 8700与8800系列3Gb/s SAS/SATA适配器的性能、可靠性与可用性。MegaRAID 3.5包括多路径和负载均衡功能，旨在减少系统停机时间，并能使大块顺序读取性能提升 40%。...

性能之外：LSI 6Gb/s SAS RAID渠道先行

也就是说，每台硬盘驱动器至少能输出360MB/s的数据流，确实是3.0Gb/s SAS所不能达到的（上限300MB/s），体现出了6Gb/s SAS的价值。但即便是希捷最新款的Cheetah 15K.7，持续传输率亦没有这么高（约200MB/s）。所以，在见到详细的测试配置...

高性能Cassandra多语言客户端

除了服务端的各种优点之外，Cassandra对各种语言客户端（driver）的高性能支持也是其实现易用性和良好性能的重要环节。Cassandra支持几乎所有流行语言的原生客户端：Java/Python/C++/C#/NodeJS/PHP/Ruby/Go/Perl/Scala...（详细列表参见...

SaaS产品在性能上的缺点有什么？

SaaS产品软件性能瓶颈的原因是什么？

Cassandra 性能压测及调优实战

这里其实就是一个单纯的读产品的压测，在压测完成之后，也能看到在这一个多场景下的性能情况。压测的时候，你的应用cassandra里面的缓存其实是空的，只有在持续一段时间之后，你的数据库的缓存它的命中率比较稳定了，压测出来的数据才是...

Cassandra 性能压测及调优实战

Cassandra性能压测及调优实战|学习笔记

开发者学堂课程【Cassandra数据库入门与实战：Cassandra性能压测及调优实战】学习笔记，与课程紧密联系，让用户快速学习知识。课程地址：https://developer.aliyun.com/learning/course/784Cassandra性能压测及调优实战内容简介:一、性能...

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性能测试 PTS

性能测试 PTS是面向所有技术背景人员的云化测试工具。PTS以互联网化的交互，提供性能测试、API调试和监测等多种能力。自研和适配开源的功能轻松模拟任意体量的用户访问业务的场景，任务随时发起，免去繁琐的搭建和维护成本。

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