problems (less)2. You can set up a traffic check service to monitor the network traffic of the service, such as Cacti and MRTG, but none of them are real-time! Usually once every 5 minutes3. Some script code can be used in linux to monitor the real-time traffic of the NIC,
View real-time traffic scriptsUse vi to create a script file, copy the following code, grant permissions, and run script monitoring.
#! /Bin/bashWhile ["1"]DoEth = $1RXpre = $ (cat/proc/net/dev | grep $ eth | tr: "" | awk '{p
, such as Cacti and MRTG, but none of them are real-time! Usually once every 5 minutes3. Some script code can be used in linux to monitor the real-time traffic of the NIC,
View real-time traffic scriptsUse vi to create a script file, copy the following code, grant permissions, and run script monitoring.
#!/bin/bashwhile [ "1" ]doeth=$1RXpre=$(cat /proc/net/dev | grep $eth | tr : " " | awk '{print $2}')TXpre=$(cat /proc/net/dev | grep $eth | tr : " " | awk '{print $10}')sleep 1RXnext=$(cat /proc
// C # Get jpg image size and inch resolution quicklyPublic static int getJpgSize (stringFileName, out Size JpgSize, out float Wpx, out float Hpx){// C # Get jpg image size and inch resolution quicklyJpgSize = new Size (0, 0 );Wpx = 0; Hpx = 0;Int rx = 0;If(! File. Exists (FileName) return rx;FileStream F_Stream =File. OpenRead (FileName );Int ff =F_Stream.ReadByte ();Int type =F_Stream.ReadByte ();If (ff!
first and eth1 indicates the second.
◆ Display interface features
When called along with the-I tag,Netstat displays the current configuration features of the network interface. In addition, if the-A option is also included in the call, it will also output all the interfaces in the kernel, not just the interfaces currently configured. The output result of netstat-I is as follows:
[Root @ machine1/] $ netstat-IKernel interface tableIface MTU met RX-OK
Find some articles online, because the NIC buffer size is too small (This is a count of packets that have been dropped by the kernel, either due to a firewallconfiguration or due to a lack of network buffers .), then we only need to adjust the network card buffersize and find some foreign articles. We can use ethtool to modify the buffer size of the network card. First, we need to support the network card because it is a NAT device, all my network cards are INTEL's mLet's take a look at the etht
use is in the "active" status.■ H through this route, only one host can be reached.■ D if the route table entry is generated by an ICMP redirection message, this flag is set.■ M this flag is set if the route table entry has been modified by the ICMP redirection message.Iface in the netstat output result shows the physical network adapter used for the connection. For example, eth0 indicates the first and eth1 indicates the second.◆ Display interface featuresWhen called along with the-I tag, nets
is added to the 3rd feet of u8a through the resistance R17, v7 = 2 * (RX + 2r0)/(R15 + RX + 2r0 )..... E. the voltage of the u8a 3rd Foot is equal to that of the 2nd foot, V1 = v2 ...... F by abcdef, (V5-V7)/100 = (V7-V3)/2.2 simplified V5 = (102.2 * V7-100V3)/2.2 I .e. V5 = 204.4 (RX + 2r0) /(1000 + RX + 2r0)-200/11
Through the/proc/net/dev can be viewed to the network card traffic, according to the changes in the value of the file in conjunction with while loop write a real-time monitoring network card script, by specifying the network card name as parameters to monitor the traffic of the specified network card
#!/bin/bashWhile ["1"]TodoEth=$1rxpre=$ (Cat/proc/net/dev | grep $eth | tr: "" | awk ' {print $} ')txpre=$ (Cat/proc/net/dev | grep $eth | tr: "" | awk ' {print $} ')Sleep 1rxnext=$ (Cat/proc/net/d
Objective
Because this Rxjava content is not very small, and the application scene is very wide, so this article about Rxjava we will update, today come to an introductory Rxjava bar
First knowledge of Rxjava
What is Rx
Many tutorials in explaining Rxjava, come up to introduce what is Rxjava. Let me first say what is Rx,rx or Reactivex, officially defined as:
[fnum][i].perspective ();
C3[fnum][i].perspective ();
var tx = Tip[fnum][i].rx;
var ty = Tip[fnum][i].ry;
With (Flower_mc[fnum][i])
{
Clear ();//purge random painting content
if (flower)
{
LineStyle (Growscale * LEAFLENGTH/12, Midcolor[midnum]);//linestyle (thickness, RGB color, alpha transparency): Change the current line style
MoveTo (FX, FY);//moveto (x coordinates, y coordinates): Moves the current painting position.
LineTo (FX, fy-1);//lineto (x
Rx.
Address (Enta, INCA, DECA, etc.) that is described in the Addresses section is the number.
Comparison operators: The values of registers and memory are compared.
Move is moved from cell m to the cell in the R1 's content, the number of times F is specified, followed by the value of R1 plus F.
NUM, the character code into a numeric code, M is ignored, N1 into 1,n2 into 2,
CHAR, which is not the inverse of NUM, adds 3 before N, affecting Ra an
1024x768-nolisten tcp-nohttpd-localhost"
Pay attention to the comments, modify as appropriate.
3. If the system turns on the firewall, uses the VNC Viewer connection, also puts the 5901~590x port, uses the Web method to connect the 5801~580x port (depending on how many users you open the VNC service, if VNC first port is open, then 5801, and so on) opens, As for whether to open the TCP port or UDP port, according to their own settings to modify.
4
, after all, the current large number of physical real-time operation has not been popular in each 3D game.
Graphics manufacturers release physical acceleration technology
The physical acceleration technology of AMD's graphics card is named as asymmetric physical processing technology. It requires at least two ATI graphics card support, one of the ATI graphics card as a physical processor, the other is used as a GPU, and also supports two different models of ATI graphics card work together, so
# vi/etc/rc.d/traffic_monitor.sh----------------------------------------------#!/bin/Bashpath=/bin:/usr/bin:/sbin:/usr/sbin:/usr/local/bin:/usr/local/Sbin;export PATHfunctionTraffic_monitor {# system version Os_name=$(sed-N'1p'/etc/issue) # Network port name ETH=$1#判断网卡存在与否, exit if not presentif[!-d/sys/class/net/$eth]; Then Echo-E"Network-interface not Found" Echo-E"You system has network-interface:\n ' ls/sys/class/net '"Exit5 fi while["1" ] Do# state Status="Fine"# Gets the cu
inactive interface can also be displayed. A ifconfig call that checks the Ethernet interface eth0 can get the following output: #ifconfig eth0 Eth0 Link encap 10Mbps Ethernet HWaddr 00:00:c0:90:b3:44 inet addr xxx.xxx.xxx.xxx bcast xxx.xxx.xxx.255 Mask 255.255.255.0 Up broadcast RUNNING MTU Metric 0 RX Packets 3136 Errors 217 dropped 7 overrun 26 TX packets 1752 Errors dropped 0 overrun 0 (Note: Where XXX.XXX.XXX.XXX is an IP address) The MTU and met
Under Windows to a network card to set multiple IP, is relatively easy, today I wrote the content is about in Linux system, to a network card set up multiple IP address, under the Linux system, the first network card is called Eth0, the second card is called eth1, Here we set the first network card multiple IP, under Linux, configure the network card configuration file in the directory/etc/sysconfig/network-script/, the original network card configuration file name is Ifcfg-eth0, The configurati
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