16g optane

　　1, the Great God F1 Plus version (current 399 yuan) Great God F1 since the old week, after the crazy price reduction, the current machine market price only 399 yuan, using 5-inch IPS screen, support mobile 4G network, with four core 1.2G Qualcomm CPU. 1g+8g memory Portfolio, top 5 million after 8 million megapixel camera, 399 dollars is quite worth recommending. 　　2, the Great God F1 Speed version (current 499 yuan) The machine is the same as the above configuration, but the R

1, what is shrinking u disk? The Shrink u disk is also called "Expansion disk, upgrade disk." is a number of manufacturers through a number of mass production tools software. Change some of the master information on the top of the U disk. Then the size of the memory on the U disk is much larger than its actual capacity. For example, in the purchase of 16G U disk, but when you buy it as long as the use of 4G can not be stored. In this case the U disk

(...), (...), ..., and LOAD DATA INFILE) are faster. This variable limits the number of bytes in the buffer tree in each process. Setting to 0 closes this optimization. Do not set this value greater than "key_buffer_size" for optimization. This buffer will be allocated when burst inserts are detected.Read_rnd_buffer_size-When a row is read from a sorted sequence, the row data is read from the buffer to prevent disk seek. If you increase this value, you can improve the performance of many order

* * Ubuntu16.04 (WIN10) + cuda8.0 + cudnn5.1 + tensorflow1.0.1 configuration * * A. Ubuntu16.04 installation steps (pc:hasee): Open Disk Manager in window, then compress volume + DELETE volume, get install Ubuntu storage space. (greater than 50G) use UltraISO to engrave the downloaded Ubuntu image file into a CD-ROM image, plug it into the USB port and restart press F2 to enter the BIOS, modify the boot entry, set it to boot from the U disk, and then save and reboot reboot after the selection:In

Partition is occupied): File system type capacity used available% mount point/dev/sda3 ext4 518G 2.7G 489G 1%/tmpfs tmpfs 16G 0 16G 0%/dev/shm/dev/sda1 ext4 1008M 61M 896M 7%/boot/dev/sdb ext4 1.8T 1.1G 1.7T 1%/data1 grep -V ' # '/etc/fstab |column-t uuid=0c685e8b-dbb3-4a1c-a106-3f1716ab34dd/ext4 defaults,noatime 1 1 Uuid=2d7f1bcf-06d1-486e-87df-404ba670fcd9/boot ext4 defaults,noatime 1 2 uuid=248e7a99

It's not hard to understand the word mass data. Mainly for a given amount of data is particularly large, occupy a particularly large memory situation. So what's the relationship to the bitmap? Look at the following example of Tencent's massive data. For example: 4 billion unsigned integers that are not repeated are not ordered. Give an unsigned integer how to quickly determine whether a number is in these 4 billion numbers. For this problem, we gave 4 billion unsigned integers, an integer of 4

It's a strange place to be in the clouds, yesterday accidentally found in the application pool recycling settings for IIS, only set the recovery based on virtual memory limit, which caused the CPU to have regular fluctuations. In this blog post, we will report the small discovery on the way to cloud computing. Before we used the Ali server (virtual machine) encountered a dilemma: If you open the virtual memory paging file, will cause high CPU, in high concurrency will cause CPU 100%, the syste

Raid-5,mysql on the RAID-5 disk array as quickly as you might expect. ②CPU for MySQL applications, it is recommended to use S.M.P. Architecture's multi-symmetric CPU, for example: two Intel Xeon 3.6GHz CPUs can be used, now I would rather recommend 4U servers dedicated to database server, not just for MySQL. ③ physical memory for a database server using MySQL, the server memory is recommended not less than 2GB, recommended to use more than 4GB of physical memory, but memory for the cu

scale. These are just speculations. 。 Test In order to confirm my guess, the yarn.nodemanager.resource.memory-mb was tuned to 16G (we have 128G of memory, enough tube). After restarting yarn, start Mr Again, and you have the following image: You can see the parameter adjustment, yarn available memory is 120G, adjusted to become 240g;vcores 120 before the adjustment becomes 240. At this point, the conjecture is correct. So for this cluster, because

Tags: redis rdb persistenceHow Redis persistent RDB mode works:Redis Persistent RDB mode,Redis with the copy on write mechanism of the fork command. When the snapshot is generated, the entire current process is copied out, fork out a subprocess, and then loop through all the data in the child process, writing the data to an RDB file.Redis Persistent RDB mode issues that are raised:RDB mode requires 1 time times as much memory as the Redis service takes upFor example, a machine with a total of

Server 2012, which provides a SSDT development tool, which means the BI development tools (SSIS, SSRS, SSAS) is not after you install SQL SERVER 2014. Requires a separate installation, this content will be mentioned in another article.DELL pcThere was a DELL CORE I5, 8G of memory, installed a few virtual machines for several years, and now completely can not run up. CORE i7,8g memory, 1T hard disk, WIN8.1 still without touch screen in domestic need to 6600 RMB around. If it is

http://leeyin.iteye.com/blog/1459274[b] PS: This profile is for Dell R710, dual Xeon E5620, 16G memory hardware configuration. CentOS 5.6 64-bit system, MySQL 5.5.x stable version. For sites with daily IP 50-100W,PV 100-300w, use the InnoDB storage engine primarily. Other application environment please set the optimization according to the actual situation. [/b] # The following options will be read by the MySQL client app. Note Only the client appli

is roughly the following: 1. Rebuild buffer pool and prepare to recycle pages;2, in innodb_buffer_pool_chunk_size units, release delete these pages (this process will be a little time-consuming);3, adjust the AHI linked list, use the new memory address.In the actual test, it is found that the cost of modifying buffer poo online is not big, and the SQL command is completed instantaneously, and the latter process is not too time consuming. In an environment where a concurrent 128 thread runs TPCC

Fs.file-max = 6815744--Represents the maximum number of file handles, indicating the number of files that can be opened on a Linux system.Fs.aio-max-nr = 1048576--This parameter restricts the concurrent outstanding requests and avoids the I/O subsystem failure. The recommended value is--1048576=1024*1024, which is 1024K.Kernel.shmall = 2097152--Represents the total amount of available shared memory, in units of pages, on a 32-bit system with a page equal to 4kB, or 4096 bytes. The maximum size o

', ' Game Ben ', ' Ray God ', ' 8499 ', default,default);INSERT tdb_goods (Goods_name,goods_cate,brand_name,goods_price,is_show,is_saleoff) VALUES (' x550cc 15.6Inch notebooks ', ' notebooks ', ' asus ', ' 2799 ', default,default);Inserttdb_goods (Goods_name,goods_cate,brand_name,goods_price,is_show,is_saleoff) VALUES (' X240 (20ALA0EYCD) 12.5 inch ultra-polar ', ' Super Ben ', ' Lenovo ', ' 4999 ', default,default;INSERT tdb_goods (Goods_name,goods_cate,brand_name,goods_price,is_show,is_saleof

Installation environment except for steps 1 and 7, the remaining steps are done under root user Database version: Oracle 11g R2 operating system: CentOS6.5 Preparing the operating system1) Download Oracle 11g R2 installation files: Linux_11gr2_database_1of2.zip and Linux_11gr2_database_1of2.zip2) Hardware DetectionMemory detection:oracle11g requires a minimum memory of 1GB grep memtotal/proc/meminfoSize of shared memory: Df-k/DEV/SHMSwap space:The requirements for 11g swap space are:

time consuming), 3, adjust the Ahi list, Use the new memory address. In the actual test, it is found that the cost of modifying buffer poo online is not very good, the SQL command after the completion of the complete instantaneous, the second process is not too long time. In an environment where a concurrent 128 thread runs TPCC, the buffer pool is scaled from 32G to 48G, the background thread takes 3 seconds, and a reduction from 48G back to 32G takes 18 seconds, and no lock waits occur durin

Tags: cloud computingXXX Education summed up a lot of cloud computing surface questions and answers, take a look at it!1. How does the production scenario properly partition the Linux system?The basic principle of partitioning is simple, easy-to-use and convenient for batch management. The following recommendations are based on server role positioning:① Standalone server: 8G memory, 300G HDDPartition:/boot 100-200m,swap 16G, memory size 8g*2,/80g,/var

/sdbMkdir/mnt/iscsi-disk01mount/dev/sdb/mnt/iscsi-disk01/7. Configure Auto MountVim/etc/fstab/dev/sdb/mnt/iscsi-disk01 XFS Defaults,_netdev 0 0Set to automatically mount when powered on because the iSCSI server transmits data based on the IP network, we must add the parameter _netdev to the Fstab file, and then mount it on behalf of the networkdf-h | Grep/dev/sdb/dev/sdb 16G 33M 16G 1%/mnt/iscsi-disk01Creat

, cost-effective is what I pursue! ）Memory:8g (felt very happy at that time, never used so fast machine, although the company is said to be 8G, but built up a lot of things, 16G do not feel fast, now memory so expensive, I really regret not to buy 16G)graphic:gtx650 256MB (I remember it was about 600 dollars, but also the first time to buy such an expensive video card, but also bought Black Kat it)Mainboard