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Ubuntu 8.04近日已经进入了冻结阶段，展开了最后的收尾工作，下周将发布Ubuntu 8.04 RC，为本月底就要发布的正式版做好最后的准备。
Ubuntu 8.04除了新加入的功能，与Ubuntu 7.10 操作系统之间的性能究竟有多大差别呢？Phoronix日前对它们进行了对比。分别采用Ubuntu 7.10版和Ubuntu 8.04版，升级至4月3日的最新版本，进行Bootchart、Doom 3、LAME编码、硬盘读取、Gzip压缩和内存速度测试，感兴趣的朋友来看。
图：Ubuntu 8.04操作系统
测试在一台ThinkPad T60上进行，主要硬件信息为：Intel T2300处理器(1.83GHz)、1GB DDR2 内存、80GB SATA HDD硬盘、ATI Mobility Radeon X1400 128MB显卡，驱动使用催化剂8.3。
Ubuntu 8.04的主要软件包括：Linux kernel 2.6.24、GCC 4.2.3、GNOME 2.22、X.Org Server 1.4.1。Ubuntu 7.10的主要软件为：Linux kernel 2.6.22、GCC 4.1.3、GNOME 2.20、X.Org 7.2。
图：启动时间对比
图：Doom 3 800×600分辨率高画质下帧数对比
图：Doom 3 1280*1024分辨率低画质下帧数对比
图：LAME编码测试对比
图：磁盘读写时间对比</P
图：Gzip软件压缩文件时间对比
图：RAMspeed测试结果对比
图：RAMspeed测试结果对比
在测试中，Ubuntu 8.04版的启动速度比7.10慢了3秒钟，其他的桌面性能两者基本相当。不过，8.04中加入了众多新特性，另外Ubuntu 8.04是一个LTS，拥有2年的支持时间这些都是它最大的优势。(文本来自驱动之家)
Back in December we looked at the initial Ubuntu 8.04 Alpha 2 performance by comparing it to Ubuntu 7.10. In that article we had found the performance between the two releases to be roughly the same. Now that we’re nearing an end in this development cycle as Ubuntu 8.04 LTS (Hardy Heron) will be released later this month, we’ve ran a new set of benchmarks comparing the latest Ubuntu 8.04 packages to the previous Gutsy Gibbon release.
These benchmarks today are quite simple as we have just taken Ubuntu 7.10 and Ubuntu 8.04 Beta with all updates as of April 3, 2008 and then ran Bootchart, Doom 3, LAME encoding, timed disk reads, Gzip compression, and RAMspeed.
Testing was done on a Lenovo ThinkPad T60 with an Intel Core Duo T2300 (1.83GHz) processor, 1GB of DDR2 memory, 80GB SATA HDD, and ATI Mobility Radeon X1400 128MB. The ATI Linux driver in use was Catalyst 8.3. For those not familiar with the latest packages in Ubuntu 8.04 LTS, it contains (among many other packages) the Linux 2.6.24 kernel, GCC 4.2.3, GNOME 2.22, and X.Org Server 1.4.1 Pre-Release. This is in comparison to Ubuntu 7.10, which ships with the Linux 2.6.22 kernel, GCC 4.1.3, GNOME 2.20, and X.Org 7.2.
This past February we had looked at Ubuntu’s Boot Performance going back all the way to Ubuntu 6.06 LTS “Dapper Drake” and with that, we had found Ubuntu 7.10 by far had possessed the fastest boot time. In our test environment, Ubuntu 7.10 was eight seconds faster than Ubuntu 7.04 during the boot process. From these benchmarks today with the Lenovo ThinkPad T60, Ubuntu 7.10 still reigns supreme for the boot performance with Hardy Heron running three seconds slower.
Once in the desktop, Ubuntu 7.10 and Ubuntu 8.04 had performed neck-and-neck with neither release showing a definitive advantage. While Ubuntu 8.04 may not be faster than its predecessor, it does boast a number of new features from a KDE 4.0 spin to integrating virtualization improvements. For those always giving office presentations or switching monitors, one subtle but useful addition is a RandR GUI. This is also the first Long Term Support release in two years.
