share3:row-x Line Exclusive (RX): For row modification, sub exclusive4:share shared Lock (S): block other DML operations, Share5:s/row-x shared Row Exclusive (SRX): Block other transactional operations, Share/sub exclusive6:exclusive Exclusive (X): Standalone access use, exclusive We can find at least 2 things from this table. The first is what each database operation corresponds to what kind of lock, the second is between each kind of lock, if encou
Multicast MAC addressIs a type of logical MAC address. This MAC address represents a multicast group. All members in this group receive data frames with the target address of the multicast MAC address corresponding to this group. To better understand the concept of multicast and MAC address, let's look at the following Configuration:
Case requirements
1. in the process of layer-2 multicast, in addition to dynamically creating a multicast Forwarding Table item through the layer-2 multicast prot
Layer 2 multicast configuration case requirements
1. Three S3600-SI and a S3600-EI composed of two layer multicast network, SwtichA selected S3600-EI, SwitchB, SwitchC, SwitchD selected S3600-SI;
2. multiple Multicast sources can be connected to any of the four S3600 Series Products, and the receiving end can only be connected to SwitchA to receive multicast data from any Multicast Source on SwitchA.
The networking diagram is as follows:
S3600-EI vlan 1 Virtual Interface address: 192.168.0.1/24
Release date:Updated on: 2012-12-02
Affected Systems:Wireshark 1.xDescription:--------------------------------------------------------------------------------CVE (CAN) ID: CVE-2012-5600
Wireshark (formerly known as Ethereal) is a very popular open-source network traffic analysis software.
Wireshark 1.6.0-1.6.11, 1.8.0-1.8.3 RTCP parser in the epan/dissectors/packet-rtcp.c function dissect_rtcp_app security vulnerability, through specially crafted pack
For many enterprise users, performance is not the primary factor for server selection. The most important indicator is low power consumption and capital budget. AMD's latest haolong 4100 series processor is developed and designed for such users. The 4100 series is a low-level version of The Magny-Cours codenamed mainiku core haolong 6100 series processor. Haolong 6100 has two versions: 8-core and 12-core. In contrast, the "Lisbon" haolong processor is only a single core.
AMD
However, although th
One fact that not many people know is that Intel's Nehalem-EX series Processors not only include Xeon 7500 series Processors for the 4-way and above server markets, it also includes a Xeon 6500 series processor for dual-circuit design.
Designed as a dell pe M910 blade server that fits both the 7500 series and 6500 series applications
The limit that Xeon 6500 can only be used in the dual-channel market is achieved through the QPI bus, which is the same as that of single-channel Xeon/desktop Core
Intel released the Nehalem-EP processor successor Westmere-EP at us time in March 16 this year. The new-generation processor adopts a 32nm process. When the power consumption remains roughly the same, the number of cores of the processor is increased to six, and the number of cores is improved in all aspects.
Xeon 5600: Westmere-EP
Generally, Major server vendors will launch a series of products that use new processors and integrate other new techno
Time flies, the familiar HP ProLiant server has entered the 7th generation, which we often call the G7 series. As part of HP's integrated infrastructure portfolio, the G7 series will promote the development of enterprise data centers to an integrated architecture by providing a standardized, modular, and integrated high-performance design. At the same time, the G7 series also continued the trend of ProLiant green energy saving. Today, we will introduce ProLiant DL585 G7, an AMD four-way rack ser
laboratory's server blades contains 225 virtual machines with 5600 GB of memory and two Intel Xeon processors, each host has six cores. This density is not even because the workload is close to the CPU and memory capacity, and the CPU utilization is generally around 15%.
This is okay when talking about basic servers, but what will happen when the server runs a CPU intensive load? You can allocate additional CPU cores to a virtual machine. For example
Java lock locks specific objects and javalock locks
Since lock does not lock a specific object, how can we achieve the same effect as synchronized synchronization blocks?
Answer: assign a lock to each object needing to be locked.
Example:
List
Efficiency Comparison (MACHINE: macOs10.12.5, i5 processor, 8 GB memory)
// Thread_count synchronized lock// 10 1-2 ms 2-3 ms// 100 8-12 ms 7-12 ms// 1000 68-94 ms 64-85 ms// 10000 642-713 ms 687-773 ms// 100000 5500 ms
, '$9,999') From emp;
12. display the string format of April 9, October 1, 1949, and the final result is April 10, October 1, 1949.
Select to_char (to_date ('1970-10-1 ', 'yyyy-mm-dd'), 'fmyyyy "year" MM "month" dd "day"') from dual;
October 1, 1949
13. display data as follows:
Sal = 800 shows low wagesSal = 3000 normal salarySal = 5000 high salary
Select sal, decode (sal, 800, 'low wage ', 3000, 'normal wage', 5000, 'high wage ') from emp;
14. The following fields and string connections are dis
president 17-11 month-81 5000 10 7876 adams clerk 7788 month-87 1100 20 7902 ford analyst 7566 03-12 month-81 3000 20 7934 miller clerk 7782 23-1 month-82 1300 10. Eight rows have been selected. Use the UNION operator to calculate the total salary of each department in scott's emp table and the salary of each department's position. SQL code> break on deptno skip 2; SQL> select deptno, job, sum (sal) from emp group by deptno, job 2 union 3 select deptno, to_char (null), sum (sal) from emp group
H3C switch typical access control list (ACL) configuration instance 1 networking requirements: 1. By configuring the basic access control list, you can achieve ~ Filter packets sent from hosts whose source IP address is 10.1.1.2 within; www.2cto.com 2. the Advanced Access Control List must be configured to prohibit mutual access between the R D department and the Technical Support Department, and restrict the R D department from visiting the salary query server from to on work hours. the layer
classMainactivityextendsActivity {Static Final intGb_sp_diff = 160; //The starting location code for the different pronunciations of the Chinese national standard first Class Static Final int[] Secposvaluelist = {1601, 1637, 1833, 2078, 2274, 2302, 2433, 2594, 2787, 3106, 3212, 3472, 3635, 3722, 3730, 3858, 4027, 4086, 4390, 4558, 4684, 4925, 5249, 5600 }; //storage of national standard first-class Chinese characters differen
represents a high voltage resistor.R l 0402 F r-070r LA B C D E F G H JAB resistance type (RC indicates a general thick film resistor; RL represents a low resistance, and re represents a general precision thick film resistor; RT and RJ represent high-precision high-stability film resistors)C size, the national giant SMD resistance size specifications are expressed in imperial methods, such as 0100,0201,0402,0603,0805,1206,1210,1218,2010,2512 and so on.D state giant SMD Resistor error indication
One palm is a professional for small and medium-sized entity businesses to provide a full range of mobile Internet solutions to help businesses realize the transformation of mobile Internet products. The product is based on the merchant's public number, through the access to one palm through the function to achieve the integration of the shop line, to solve the "mobile Internet" transformation dilemma faced by merchants, to create a business of their own platform.Product advantages1, to solve th
"Topic link"http://www.lydsy.com/JudgeOnline/problem.php?id=3594Test instructionsGiven a sequence of n numbers, there are k times the chance to add a number of 1 to a range, asking for the longest non-descending subsequence.IdeasFirst you know that adding 11 intervals for [I,n] is definitely not bad.Set F[I][J] for the number of previous I, there is a J-chance of the LIS, there is a transfer:F[I][J] = max{F[a][b],h[a]+bYou can use the two-dimensional bit to accelerate the equation transfer.Code1
yellow tone, different lamps will emit different colors of light, natural gas flame is blue, because the color temperature is higher. The temperature in the midday sunlight is about 5600 K, and cloudy is closer to the indoor color temperature 3200K. The color temperature at sunrise or sunset is about 2000K, and the temperature of the candle is about 1930K. Blue Sky (18000K), it is not difficult to find a rule: the higher the color temperature, the mo
repeat here, directly on the test.
Through the rabbit test, Samsung Galaxy Note7 run out of 137549 points, Geekbench 3 single core 2320, multi-core 5370. From the calculation speed, the basic and other Xiao Dragon 820 of the product.
National line version of Samsung Note7 will be officially released on August 26
There is no exact information on the price of the country bank version, but we can refer to the price of the other versions:Korean version: 988900 won, about 5900 yua
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.