『楼 主』:
VMware 7.1相比6.0的虚拟磁盘性能下降严重
使用 LLM 解释/回答一下
昨天看到VMware Workstation发布了新版本7.1.1，原来一直用6.0.3，上个月听说7.1的3D性能提升很大，就迫不及待的下载安装了，3D性能是有很大提升，连Aero都能开；但磁盘性能却下降严重。安装了7.1.1后，也是一样的情况
测试环境1：AMD Athlon X2 4400+、2G DDR2 800、HD3850、Vista X64 SP2旗舰版
测试环境2：联想y460a i3本，WIN7 X64旗舰版
创建一全新虚拟机，硬件环境：6.0版本，内存256M，硬盘20G，系统选择：Win98
安装操作系统：中文Win95 OSR2（FAT32分区）、NT4.0（NTFS分区）各一个（尽可能小，以便更快测试），用ISO文件启动
主观感受：
1）6.0.3版本：DOS下的分区格式化过程很流畅，安装Win95时，“检测计算机”一步进行的很快，复制文件也很快，不到20分钟全部搞定。
打开DMA模式后，启动和运行Win95也很快
安装NT4时，光盘启动后蓝色屏幕不超过15秒就进入欢迎画面，装系统过程如行云流水，不超过10分钟。
启动NT4，“NTDETECT4.0正在检测硬件”过后，白色小点走的很快，蓝色屏幕后很快进入登录提示。
2）7.1.1版本：DOS下分区格式化慢了很多，能看到硬盘灯间断闪烁；安装Win95时同样如此，而且检测硬件和复制文件的进度条走的慢如蜗牛，还有停顿。整个安装过程用了30分钟以上。启动系统时，Win95的蓝天白云要停留很久才切换到光标闪烁的画面，再过20多秒才能进到桌面。打开DMA模式后，改善不大
NT4安装的速度尚可，但加载驱动和复制文件也慢了下来，而且同样有停顿现象。启动NT4时，白色小点走的速度也不是很快了。桌面背景出现后，要过几秒才出来登录框。
以上两点，目测了一下，7.1.1在NT内核下的运行速度仅相当于6.0.3的1/3左右，9X内核则只有1/5
6.0.3和7.1.1运行同样的虚拟机，速度可以说是一个天上一个地下。用6.0.3跑7.1.1建的6.0版本虚拟机，也一样有这种感觉
Yesterday I saw that VMware Workstation released a new version 7.1.1. I had been using version 6.0.3 all the time. Last month, I heard that the 3D performance of 7.1 was greatly improved, so I couldn't wait to download and install it. The 3D performance was indeed greatly improved, and even Aero could be enabled; but the disk performance dropped seriously. The same situation occurred after installing 7.1.1.
Test environment 1: AMD Athlon X2 4400+, 2G DDR2 800, HD3850, Vista X64 SP2 Ultimate Edition
Test environment 2: Lenovo y460a i3 laptop, WIN7 X64 Ultimate Edition
Create a brand-new virtual machine, hardware environment: version 6.0, memory 256M, hard disk 20G, system selection: Win98
Install the operating system: one Chinese Win95 OSR2 (FAT32 partition) and one NT4.0 (NTFS partition), both as small as possible to facilitate faster testing, and boot with ISO files.
Subjective feelings:
1) Version 6.0.3: The partition formatting process under DOS was very smooth. When installing Win95, the step of "detecting the computer" was carried out very quickly, and the file copying was also very fast. It was all done in less than 20 minutes.
After enabling the DMA mode, starting and running Win95 was also very fast.
When installing NT4, the blue screen after booting from the CD did not exceed 15 seconds and then entered the welcome screen. The system installation process was as smooth as flowing water and did not exceed 10 minutes.
When starting NT4, after "NTDETECT4.0 is detecting hardware", the white dots moved very fast, and after the blue screen, it quickly entered the login prompt.
2) Version 7.1.1: Partition formatting under DOS was much slower, and the hard disk light could be seen flickering intermittently; the same was true when installing Win95, and the progress bars for detecting hardware and copying files moved as slow as snails, with pauses. The entire installation process took more than 30 minutes. When starting the system, the blue sky and white clouds of Win95 stayed for a long time before switching to the screen with the blinking cursor, and it took more than 20 seconds to enter the desktop. After enabling the DMA mode, the improvement was not significant.
The installation speed of NT4 was acceptable, but loading drivers and copying files also slowed down, and there were also pause phenomena. When starting NT4, the speed of the white dots was not very fast either. After the desktop background appeared, the login box appeared after a few seconds.
From the above two points, it was estimated that the running speed of 7.1.1 under the NT kernel was only about 1/3 of that of 6.0.3, and that under the 9X kernel was only 1/5.
The speeds of running the same virtual machine on 6.0.3 and 7.1.1 were like heaven and earth. When using 6.0.3 to run the version 6.0 virtual machine built by 7.1.1, the same feeling was also felt.
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