Speed ​​up the system with ReadyBoost in Vista

                  ReadyBoost is a compelling feature provided by Windows Vista: it speeds up the performance of Windows Vista through a USB flash drive or USB flash drive with a USB 2.0 interface. The specific mechanism is to use the storage on the USB memory to expand the system memory. Helping an out-of-memory PC improve the overall performance of the system in a fairly simple way.

However, for U disk (USB memory) that can use ReadyBoost, Microsoft gives a seemingly demanding specification:

4K random read is not less than 2.5MB/s or 512K random write The transmission rate is not less than 1.75MB/s;

64 MB to 8 GB free space;

The total capacity of the USB disk is not less than 256 MB.

Of course, such specifications are still required. After all, if the read/write speed of the USB memory is too slow, the application of ReadyBoost may not only improve the system performance, but may even slow down the whole process to some extent. The speed of the system.

However, whether the U disk can meet the so-called "4K random read is not less than 2.5MB /s or 512K random write when the transfer rate is not less than 1.75MB /s" can only pass the corresponding The test software can see the result, but when the user purchases the USB flash drive, the corresponding specifications will not be seen in the manual of the USB flash drive.

Careful friends may have found out that the test system configuration we used is quite low after watching the Windows Vista tutorial. In fact, it uses an idle PC with only 384MB of memory, even the most basic. Windows Vista Capable requirements are not met - huh, just test it - and for such a system, it would be very meaningful to improve the memory shortage through ReadyBoost.

Unfortunately, we tested several U-disks with capacities ranging from 512MB to 2GB. There are many so-called famous products, but they can't use ReadyBoost. I don't know if we are bad luck or U disk is too much. It is. To be honest, considering the domestically confusing U disk market, we suspect that the vast majority of them are afraid to miss ReadyBoost.

As for the SD card, we tried it in Windows Vista RC1 before, of course, the result is also a failure. Especially after seeing ReadyBoost Q&A written by ReadyBoost project development engineer Matt Ayers, there is no expectation: our SD card reader is 20 yuan from the market counter to buy junk goods, with those worthy of " Compared with the U disk produced by the famous factory, it is undoubtedly less trustworthy.

However, when writing a tutorial on Windows Vista, you need to import the pictures taken by DC into the computer, and when we insert the SD card reader into the system, the gratifying picture appears:

It seems that Windows Vista RTM has made at least a lot of improvements in ReadyBoost compatibility compared to RC1. The next thing is simple. The only thing to do is to enable ReadyBoost and set the usage space of ReadyBoost:

After enabling ReadyBoost, you can clearly see the improvement of system performance, especially in large applications. It is quite amazing. - Of course, this is also related to the low memory of our test system.

The SD card we use is a Lexar 1G high-speed card. I don't know if other brands of memory cards can also use ReadyBoost. Please leave your experience in the reply.

Note: Not limited to SD card, according to Microsoft's instructions, ReadyBoost can also support other memory cards that meet the specifications such as CF/MMC and even memory stick.

Finally, BS is a U disk manufacturer.