Use the DD command in Linux to test the read/write speed of USB and SSD hard disks.Disk Drive Speed
The disk drive speed is measured by the amount of read/write data per unit of time. The DD command is a simple command line tool that can read and write any data block on the disk and measure the read/write speed.
In this article, we will use the DD command to test the reading and writing speed of USB and SSD
Key points for using SSD
SSD usage basically does not need to optimize, only the following several places need to note:
1, on the AMD series of Chip motherboards, Intel's SSD performance may be reduced, so you can choose the third party company's products.
2, the Win7 system will be shut off can save a large part of the hard disk space.
3, virtual memory, 4
How to transfer the system to the solid state drive after installing the SSD
System migration to SSD solid State hard Drive tutorial
SSD Solid State hard disk installation system In fact, there is a very simple way, after the partition assistant upgrade 5.5, once again updated and enhanced this feature, open the latest version of the Professional edit
Apple Mac OS X 10.10.4 the way to unlock third party SSD trim
What is trim?
TRIM is a system-level command that allows better communication between the operating system and solid-state drives, determines which areas on the SSD are not used, and is ready to erase and write back. For solid-state drives (SSD), because of the inherent nature of flash memory, you mu
Sometimes the read/write speed of the OS reduces the performance of the MySQL server, especially when the OS and MySQL use the same disk. Therefore, it is better to make MySQL use a separate disk and use SSD. To achieve
Sometimes the read/write speed of the OS reduces the performance of the MySQL server, especially when the OS and MySQL use the same disk. Therefore, it is better to make MySQL use a separate disk and use
Select the SSD attention and purchase skills sorted out to the small white user for reference, and Samsung 300e5k to replace the SSD process as an example for everyone real machine demo.
Before you decide to upgrade SSDs, you first need to evaluate whether your computer is suitable for SSD installation. Here need to explain, not that
SSD Installation Training data set
Transfer from http://lib.csdn.net/article/deeplearning/53859In the home directory, get the SSD code, after the download is complete there is a Caffe folder
git clone https://github.com/weiliu89/caffe.git
cd caffe
git Checkout SSD1 2 3 Go to the downloaded Caffe directory, copy the configuration file
Cd/home/usrname/caffe
CP Makefile.config.example Makefile.
1. BackgroundWhen doing a vsan experiment, you need at least one SSD disk as the read/write cache. If there is no SSD disk, we need to mark the normal HDD disk as SSD. Parameters need to be modified.2. StepsThe first step: Find the ID of the disk that needs to be modified to SSD: Red is the ID of the disk as follows[Em
from:73439202Problem Introduction:At present, the common target detection algorithm, such as faster R-CNN, has the disadvantage of slow speed. The SSD method proposed in this paper not only improves the speed, but also improves the accuracy.SSD:The core idea of this paper:The main contribution of this paper:1. The SSD target detection method is proposed, which is faster than the fastest YOLO in speed, and c
Unable to endure the speed of the home mechanical hard drive, the characteristics of a solid-state hard drive to taste fresh. Because the home computer is older, SATA interface is still 2.0, so I simply bought a piece of low-end SSD, Shadow Armor War 240G (the key is the price is cheap enough).
1, to play the largest SSD performance, the computer should pay attention to the following points:
August 27 News, Overclocking, is to let the hardware run on the default frequency setting, CPU overclocking, memory overclocking and display Casupines has been around for a long time, so you hear overclocking first think of these three hardware, but Intel's new technology is said to be likely to break the situation, the next time, The SSD can also be overclocking! Intel will have two IDF meetings a year, the second half of this will be held in San Fra
FASTER-RCNN trained his own data set, feeling the effect is OK, for their own data set accuracy rate of about 89%, but faster-rcnn speed is a pit. So, start thinking about using SSDs to try.
Since the FASTER-RCNN dataset is already available, the steps for making all datasets can be omitted. The next step is the modification of SSD training.
Here, set the SSD root directory to CAFFE-
SSD hard disk capacity is not enough to do?
Tools/raw Materials
SSD Setup Tool
Method/Step
1, open the local SSD hard disk manufacturer's exclusive setting tool, upgrade to the latest version, small part of the hard drive is magician, as an example, processing ideas are the same, pay attention to each manufacturer's tools are different.
On Disk Dirve homep
Conclusion 1:SSD card significantly improves the disk Io,io occupancy under 50% 2:SSD card makes MongoDB performance stable.In the case of 200 concurrency, the data volume is 5 times times the amount of memory and still guaranteed 1500 insertions per second and 4,500 queries. The data is as follows: 1: IO completion per second "All in memory" when there is an SSD
ObjectiveBecause the mechanical hard disk (HDD) on the notebook has already installed the WIN10. Although previously installed 128G SSD but afraid of WIN10 system occupied space is too large to do system migration, so some time SSD only do entertainment with ... Now because of the need for work and learning, I intend to install a Linux system on a solid state drive (SSD
share with you the key points of three settings for SSD drives
The key to opening AHCI is:
AHCI, all called Serial ATA Advanced Host Controller Interface (serial ATA Advanced Master Interface)
The potential acceleration capability of SATA drives, which can increase the read/write speed of 30% hard disk. When installing a solid-state drive, turn on AHCI to give full play to hard drive performance.
The current mainstream motherboards are
Because recently want to try a cow break the target detection algorithm SSD. As a matter of fact, I have made thousands of data (actually only hundreds of, using data expansion algorithms such as mirroring, noise, cutting, rotation, etc. to expand to thousands of, actually still is not enough). So on the Internet to find the relevant introduction, their own processing of data into the VOC data set format, in the conversion to XML format and so on. Her
MySQL Enable SSD storage Chszs, All rights reserved, without consent, not reproduced. Blogger Home: Http://blog.csdn.net/chszsSometimes OS read-write slows down the performance of the MySQL server, especially when the OS uses the same disk as MySQL. So it's best to let MySQL use a separate disk, to use SSDs better. To do this, you need to mount the SSD new disk to the server, assuming the new disk is/dev/sd
similar structure, u disk can be used as a solid-state hard disk?
Now u disk prices continue to slide, the 8GB u disk most also sell to fifty or sixty Yuan, 16GB USB drive is more than 100 blocks full of streets, this and thousands of dollars of solid state drives, compared to the formation of a very large contrast. From a structural point of view, U disk and SSD have many similar places. First of all, as stored data tools, they use flash as a storag
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