sm951 nvme

shown below: Vm.swappiness=0 kernel.shmmax=21474836480 net.core.rmem_max=4194304 net.core.wmem_max=4194304 kernel.sem=50100 64128000 50100 1280 vm.dirty_background_bytes=33554432 4. When using XFS, the default block size for PostgreSQL is 8KiB, but in the current Linux environment, running "Mount XFS" will eject the "feature not implemented" error, so the block size should be adjusted to 4KiB. An increase in the number of allocation groups means that more paral

Hard drives are an indispensable storage device in today's it world, requiring hard drives, whether it's a home PC, workstation or server. With the development of technology, hard disk technology is also increasing, interface diversification (SATA,SAS,SCSI,FC,NVME), storage media Diversification (HDD,SSD), hard disk in IOPS,BW and capacity has been greatly improved.Hard disk before use are required to partition, a hard drive from the factory to the ac

performance will also be reduced, not one upgrade in place, may need to upgrade again in the future. But this kind of collocation for young users, especially for the game, large-capacity program hosting needs of large users, if your budget is not sufficient, but also willing to try to do the operation, in the original volume of the capacity of this disk at the same time with SSDs to improve the performance of the platform, but also suitable. [Programme III: M.2+sata SSD] Walking in the foref

How to choose the computer before mid-Autumn festival? Thousand Quality motherboard recommendation The Z170 of the Thousand-level strong: Recommended Motherboard: Gigabyte Z170X-GAMING3 Recommended reasons: Poly cost concessions 200 yuan, Intel original USB 3.1 chip, dual m.2 SSD interface Recently, Z170 motherboards have started to reduce prices, and just met the activities of a good deal, let this gigabyte z170x-gaming3 price to 1099, cheaper than UD3! (Top 50 also

　　The Z170 of the Thousand-level strong: 　　Recommended Motherboard: Gigabyte Z170X-GAMING3 　　Recommended reasons: Poly cost concessions 200 yuan, Intel original USB 3.1 chip, dual m.2 SSD interface Recently, Z170 motherboards have started to reduce prices, and just met the activities of a good deal, let this gigabyte z170x-gaming3 price to 1099, cheaper than UD3! (The top 50 also send the mouse, but it should have been sent out) need to know this piece of Gaming3 configuration is

Coca-Cola Competition host is the Coca-Cola Company and the United States hardware manufacturers maingear cooperation, the introduction of a cola taste full of electric competition host. Many small partners must be very curious about the configuration, let small set up for you to talk about it. Introduction of Coca-Cola Electric Competition host configuration In terms of configuration, Rush 1ofONE is equipped with EVGA X99 Micro 2 motherboard, Intel i7-6950x 10 Core processor, t

supply.Advantages and disadvantages of 1.3.2 power supplyAdvantages: High performance, fast speed.Cons: Lost, too late to write.1.3.3 WorkaroundDual circuit, UPS, motherboard installed batteries, diesel generators.1.4 CPU1.5 Memory(1) Memory features: Where data is temporarily stored-the data in the power-off memory is lost.(2) procedures, processes, daemons(3) Enhance the user experience: Large Web portal (data in memory), small and medium-sized enterprises (normal data on disk)1.6 Disk(1) Def

" still advocate the use of rotating disks (mechanical disks). Frankly speaking, when it comes to manipulating databases, these arguments are often outdated or completely wrong. Today, SSDs offer considerable performance and reliability at a high price. 　　 However, not all SSDs are applicable. For a database server, you should use an SSD designed for server workloads that will protect data (for example, during a power outage). Avoid the use of commercial SSDs designed for desktop and notebook co

Tags: detail. com res info share min Soft mos addressOriginal addresshttps://minervadb.com/index.php/2018/08/06/comparing-tokudb-rocksdb-and-innodb-performance-on-intelr-xeonr-gold-6140-cpu/This article tests the environment as followsCPU Details (Intel (R) Xeon (r) Gold 6140 CPU @ 2.30GHz with CPUs)Storage devices used for benchmarking (we used NVME SSD)MySQL (we have used Percona Server 5.7.22-22 with innodb/xtradb, Tokudb and rocksdb) Configuration

VMware Workstation Pro v14.0 Update log:1. The new version supports running on the Windows 10 creator update and supports the creation and operation of new versions of the virtual machine for creators;2, the new version of Ubuntu 17.04, Fedora 26, CentOS 7.4, RHEL 7.4, Debian 9.1 and other support;3. The new version of the new TPM 2.0-compatible virtualization Trusted Platform module is used to support advanced security and encryption technologies such as BitLocker;4, the new version of the Inte

I. Disk classification and storage unit 1. Classification（1）传统硬盘（机械硬盘）：IDE、SATA、SCSI等接口，廉价、但速度较慢（2）固态硬盘（SSD）：SATA、PCI-E、M.2 2280，昂贵、但速度快2. Unit of Measure（1）b：算机识别最小单位 （8b = 1B）（2）B（字节）：比特，用户使用最小单位 （1024B = 1KB）（3）KB（1024KB = 1MB）（4）MB（1024MB = 1GB）（5）GB（1024GB = 1TB）（6）TB（1024TB = 1PB）（7）PB（1024PB=1EB）（8）EBIi. partitioning 1. Partitioning scheme（1）MBR：在磁盘暂占用512字节头部（446字节存储MBR引导记录、64存储分区表，每个分区16字节，2字节分隔符） 主分区：用于安装、启动系统 逻辑分区：只能用于存储数据 扩展分区：不能存储数据，只用于再次划分逻辑分区（2）MBR分区方案4个主分区 //只创建四个主分区在系