optimization do not set this value greater than "key_buffer_size". This buffer is assigned when a burst insert is detected. read_rnd_ Buffer_size-When a row is read from a sorted sequence after sorting, the row data is read from the buffer to prevent the disk from seeking a path. If you increase this value, you can improve the performance of many order by. Each thread is assigned when needed thread _cache_size- How many threads we keep in the cache for reuse, and when a client disconnects, if t
and PAE (physical address extension ).
More importantly, an additional decoding stage is added to the Pentium Pro pipeline to dynamically decode x86 commands into a series of micro operations (Micro-operations), These micro-ops are composed of a series of lower-LayerMicro-Instructions(Or microcode) to execute more complex x86 native commands. These microcode sequences can be re-ordered for analysis and distributed to various execution units.
Pentium
Http://apps.hi.baidu.com/share/detail/20307453
WebLogic Server summary. Users and passwords must be provided during download. You can register one or use the Metalink account.WebLogic Server 10.x
WebLogic Server 10 for Microsoft Windows (2000,200 3, x86)-DownloadWebLogic Server 10 for Microsoft Windows (2003, itanium)-DownloadWebLogic Server 10 for Microsoft Windows (2003, 64-bit Xeon/amd64)-DownloadWebLogic Server 10 for HP-UX (11i, 11iv2, 11iv3, PA-
the application type, because you cannot configure hardware to meet all application requirements, because the specific requirements of each application are different. Next, let's take a look at the application types in project implementation:Server Load balancer: the performance requirement is relatively low, because it is only responsible for data forwarding, but you must select a network card with outstanding performance. (Recommended Configuration: CPU E
How to identify the number of physical CPUs, whether hyper-threading or multi-core Jun.04, 2009 in servers
Judgment basis:1. The cpu with the same core id is hyper-threading of the same core.2. A cpu with the same physical id is a thread or cores encapsulated by the same cpu.
English version:1. Physical id and core id are not necessarily consecutive but they are unique. Any cpu with the same core id are hyperthreads in the same core.2. Any cpu with the same physical id are threads or cores in th
How to identify the number of physical CPUs, the number of cores, whether hyper-threading or multi-core Jun.04, 2009in server judgment basis: 1. CPUs with the same coreid are hyper-threading of the same core. 2. A cpu with the same physicalid is a thread or cores encapsulated by the same cpu. English version: 1. Physicalidandcoreidarenotnecessarilyconsecutivebuttheyareuni how to identify the number of physical CPUs, several cores, whether hyper-threading or multi-core Jun.04, 2009 in server
Judg
I believe everyone knows about Tianhe 2, ranking first among the top 2013 and 2014 top500, which is one time faster than the top 2nd Titan, what kind of architecture does Tianhe 2 use to achieve this capability? Let's take a look at it.
Tianhe No. 2 Model for TH-IVB-FEP, using the central processor and co-processor computing architecture layout:
Tianhe 2 has a total of 16,000 computing nodes, each of which is equipped with two Xeon E5 12 core central
Heterogeneous computing:Heterogeneous computing uses different types of processors to handle different types of computing tasks. Common computing units include CPUs, GPGPU, GPDSP, Asics, FPGAs, and other types of core processors.There are many accelerator cards or coprocessors that are used to increase system performance, which are common:GPGPU is the most common accelerator card, connected by PCI-E. The GPU was first used for graphics processing cards, the graphics card, and then slowly develop
The number of Linux CPUs is judged by/proc/cpuinfo.Same Physical ID: determines a physical processorIf "siblings" and "CPU cores" are consistent, hyper-threading is not supported, or hyper-threading is not open.If "siblings" is twice Times "CPU cores", then hyper-Threading is supported and Hyper-threading is turned on.In fact, just#include Long num = sysconf (_SC_NPROCESSORS_ONLN);You can get the current number of CPUs ...Basis of judgment:1. CPUs with the same core ID are Hyper-threading of the
) Processorcache size:64 KBExample 2:single processor, 1 core, hyperthreading is enabled.Notice how we had 2 siblings, but only 1 core. The physical CPU ID is the same for both:0.Processor:0model Name:intel (R) Pentium (r) 4 CPU 2.80GHzcache size:1024 kbphysical id:0siblings:2core id:0cpu cores: 1processor:1model Name:intel (R) Pentium (r) 4 CPU 2.80GHzcache size:1024 kbphysical id:0siblings:2core id:0cpu cores: 1Example 3. Single Socket Quad CoreNotice how each processor have its own core ID.
In fact, as long as
#include Long num = sysconf (_SC_NPROCESSORS_ONLN);
You can get the current number of CPUs ...
Judge the basis:1. CPUs with the same core ID are the same core hyper-threading.2. CPUs with the same physical ID are the same CPU-encapsulated threads or cores.
English version:1.Physical ID and core ID are not necessarily consecutive but they unique. Any CPUs with the same core ID are hyperthreads in the same core.2.Any CPU with the same physical ID are threads or cores in the
When using a system, we must look at the system configuration, while the CentOS system looks at the configuration, it is not as intuitive as windows. You can only view them one by one. Many people are overwhelmed by how to view the CPU of the CentOS system. Next, let's learn how to view the CPU in the CentOS system. I. CentOS cpu [root @ srv/] # more/proc/cpuinfo | grep quot; m
When using a system, we must look at the system configuration, while the CentOS system looks at the configuration, it
When using a system, we must look at the system configuration, while the CentOS system looks at the configuration, it is not as intuitive as windows. You can only view them one by one. Many people are overwhelmed by how to view the CPU Of The CentOS system.
Next, let's learn how to view the CPU in the CentOS system.
I. CentOS system cpu
[Root @ srv/] # more/proc/cpuinfo | grep "model name"
Model name: Intel (R) Xeon (R) CPU X3220 @ 2.40 GHz
Model name
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