For more information about how to use an ssd hard drive to accelerate mysqlindex, see www.javaarch.netjiago ushiindex.htm? If the data volume is large and the ssd capacity is not large, you can save the index data to the ssd to store the table data on the old hard disk .? So how can we make mysql build index on ssd and
First, recognize the mSATA SSD and 2.5-inch SSD SSDSSDs currently have MSATA SSDs and 2.5-inch SSD SSDs.1, MSATA SSD uses MSATA interface connection, small size, suitable for the notebook computer with MSATA interface installed. Now a lot of new computers have mSATA interface, some SATA2 3gb/s, there are SATA3 6gb/s, T
I talked to users and vendors about how SSD (solid state drive) is used, I found that most people think that server SSDS must be ultra-high-performance SLC (single-layer unit) PCIe flash cards manufactured by manufacturers such as Fusion-IO, micron, Virident, or LSI. Although most people know that the mainstream SAS or SATA interface SSD is in the 2.5 inch format, they seem to think that these devices are o
After replacing the SSD under Mac Pro, it is cumbersome to change the SSD to AHCI mode if Win7 is installed. This article describes how to change the SSD in Mac Win7 to AHCI mode driver and the processing of several common problems.How to change the SSD drive mode of Win7 to AHCI when Lion and Win7 dual system coexist1
4K corresponds to 4096HDD Mode:First, let the SSD run in AHCI mode:AHCI, the full name Advanced host controller Interface, which is the high-level hosting controllers interface, is more suitable for SSD SATA storage device communication protocols than the older "IDE" virtual mode. In AHCI and IDE mode, the SSD's performance gap percentage is around 65%. Therefore, it is recommended that
I. first, review the read and write features of SSD (1) Limited write times; (2) best random read performance; (3) Good sequential read performance; (4) Poor sequential write performance; (5) the random write performance is the worst. In terms of storage, different content of SQLServer has its own unique personality. The following lists TempDB, Data, indexes, and transaction logs respectively.
I. first, review the read and write features of
A framework for SSD target detection –2017.3
References: official website: HTTPS://GITHUB.COM/WEILIU89/CAFFE/TREE/SSD Blog: http://blog.csdn.net/wizardna521/article/details/53463348 Introduction to SSDs
SSD is Dr. Weiliu's deep learning framework for real-time target detection based on Caffe. Compared with the faster rcnn, the speed of the target detection has b
The use of SSD hard disk is becoming more and more common, its powerful performance can help the computer to improve the system and software running speed, so by many users, but a lot of computer novice for how to install SSD hard disk still have many questions, the following small series will explain the SSD hard disk installation method.
of the computer. So we say, now the bottleneck of computer hardware is the traditional mechanical hard disk.
That being the case, we can see that improving the performance of the hard drive can improve our experience of using the computer, so SSD turned out. SSD because of its storage medium and principle and traditional mechanical hard disk is completely different, so greatly improve the read and write s
analyzed.
Locate the possible cause of the problem and try to make the following adjustments on the 24 master database:
After the above adjustments, I/O became stable and there was no larger fluctuation.
For the sake of insurance, project A decided to use an SSD-equipped model to migrate the master database, and migrate the 24 slave database 27. After the migration is completed, the SSD and MySQL InnoDB pa
Failure phenomenon:
Some of the ThinkPad preinstalled mSATA SSD shipments do not have the Expresscache software installed, resulting in the inability to use the mSATA SSD as a cache.
Impact Range:
-The above problems may occur on the following models, but not limited to the following models:
ThinkPad T430, t430i, t430s, T430si, T530, t530iThinkPad W530ThinkPad X230, x230i, X230 tablet, x230i tabletThink
in recent years, with the popularity of SSD, high-speed solid-state hard disk has become the standard of computer hardware gradually. SSD Solid state hard disk solves the traditional mechanical hard disk reading speed bottleneck problem, bring more fluent experience, computer switch machine obviously speed up, browse the Web page smoother, large-scale application and game load faster and so on, experience i
ImpressionsToday, I tested the model of my own training, and YOLOv2 done a comparison, the detection is correct, YOLOv2 version of the accuracy is not high, but there are a lot of SSD did not detect, recall rate is not high. Note that the SSD environment is Python3, and running on the python2 will be problematic. TENSORFLOW-GPU, OPENCV installation reference my blog: SS
In the relational database area, PostgreSQL is a very popular open source database software. Since its release in 1996, it has accumulated nearly 20 years of practical experience, both in PostgreSQL itself and in community ecology. Not only small and medium-sized enterprises, many large industry customers will also use PostgreSQL to build their own database system. This article focuses on PostgreSQL and compares the SAS disks in the PCIe SSD (this art
files are in use. DiskSim is initially separated from a large, system-level simulator, so it can be easily transplanted to the entire system simulator (such as porting to SimOS ).
What DiskSim Does Not Do?DiskSim only simulates and reports storage subsystem performance-related aspects. It does not simulate the behavior of other computer system components, or the interaction between components and the storage system.
DiskSim simulates the performance of the hard disk system, but does not save th
in sequential read and write performance, sequential reading can reach the 82.4mb/s, basic and mechanical hard disk performance level, the random read and write performance slightly improved, not very obvious. Considering the high requirements of TC for Random Read and write performance, the USB drive with 3.0 interface is still difficult to meet the performance requirements.2.3 Test Result AnalysisCombined with the above test results, slow write speed is the main performance bottleneck of the
This article is for reading book next Generation Databases:nosql, Newsql, and Big Data Chapter 7th: The End of Disk? SSD and In-memory databases notes.The disk is dead?Bill Gates said in 1981:
640K of memory should is enough for anybody.
In 2001, he realized that the previous statement was wrong:
I ' ve said some stupid things and some wrong things, but not that.
Since the birth of the first database, database experts have
This article from http://ssd.zol.com.cn/575/5753057.htmlIn the use of SSD, some users may encounter the computer accidentally power down or crash and forced power outage, the system is abnormal, scan the SSD and found a bad block, and then a hurry to stomp even want to return to the factory repair.In fact, the solid state drive after the bad block is not a serious problem, the following the author of this q
Latency of next-generation SSD controller based on low-density Inspection
Author: Stephen BatesLatency Variability
In the previous blog, I talked about how the Error Correction Code (ECCS) in the enterprise-level SSD controller is being converted to Low-Density Parity Check (Low-Density Parity Check. This article also implies that this conversion will have a profound impact on the latency in the next-genera
compatibility with Sata hard disks. SAS interface technology is backward compatible with Sata.
In terms of interface standards, Sata is a sub-standard of SAS. Therefore, SAS controllers can directly control SATA hard disks, but SAS cannot be directly used in Sata environments, because the SATA controller cannot control the SAS Hard Disk
SSD
SSD is a technology that discards traditional magnetic me
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