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Old topic. php excel export, phpexcel class is very powerful, but the efficiency is low and slow, fputcsv speed is fast but do not know how to solve the problem of scientific notation, ask the old driver to teach experience such as questions...
At present, the exported data may be about million records in the next month. in this case, about 20 M is finally expo
Old topic... for help exporting EXCEL via PHP, the phpexcel class is very powerful, but the efficiency is low and the speed of fputcsv is fast, but I don't know how to solve the problem of scientific notation, ask the old driver to teach his experience. This post was last edited by anyilaoliu from 2014-08-6:6:39:12... the exported data is about items at present. nbsp; it may be an old topic in the next mon
The jquery effect function (Slideup (), FadeIn (), and so on) and the animation () function all receive another parameter that controls the speed of the animation process, which is the easing (easing), which determines the speed of the animation process at different times. For example, when you move an element across a page, you may let the element start moving slowly, then quickly, and then
Typically, network bandwidth and Nic such as 10M ADSL, 100M Fiber, 300M wireless network card, 450M wireless router, their unit m refers to Mbps, and for our really meaningful download speed, Internet speed, disk read and write speed using the unit is MB/s. 1mb/s=8mbps, that is, if the 100M fiber, the theoretical maximum transmission
I mentioned this issue in a previous article. A bug 5095398 in swing will seriously affect the speed of netbeans. Recently, I heard a netizen say that his netbeans speed is very slow. I wonder if it is caused by this bug.
This bug occurs when the swing program is run in the
I. Software Article 1. Setting up a virtual memory hard disk has a very big data exchange file, which is a place for the system to reserve virtual memory for temporary storage and is frequently used by many applications, therefore, the system often needs to perform a large amount of data access to the primary storage. Therefore, the speed of accessing this file constitutes a very important factor affecting the spe
The solution of slow speed after reloading the system 2011-07-27 18:40
Source: http://www.ijinshan.com/zt/ws_zbqdxz.shtml Summary: When the system encounters a problem that is difficult to fix or runs slowly, we often choose to reload the system to restore the computer's normal operation. However, setup loss and driver reinstallation after reinstallin
first look for dial-up interface, can not find a dial-up after the LAN has no proxy server, the last will find Enternet 300 interface, so it will be very slow. Just run through the Internet Connection Wizard again, select the LAN method, and take
Eliminate the automatic search proxy server can be resolved.
12. Cannot bind TCP/IP protocol
TCP/IP cannot be bound more than the NIC driver is improperly inst
application software or driver Some programs slow down the system when the computer system starts. If this is the cause, we can start in safe mode. Because this is the original boot, Safe mode runs slower than if it is running normally. However, if you start with Safe mode and find that your computer starts faster than it normally does, it is possible that a program is causing the system to start slowing
Why sometimes ADSL access speed is very slow
1. The network card is bound too many protocols. The speed of the Internet is very slow, it is very common among the users of LAN, because the network card binds too many protocols. If a lot of protocols are bound on the network card, when the data passes through the networ
Tags: requires version href 5.0 Select time jdk1.4 compatibility speedRecently, a Java Swing program was written under CentOS and found that the JDBC connection to Oracle in Linux was slow and often failed. But the same program runs very fast under Windows. Online search for a long time and I this situation is not okay, by chance to see the following article:Original Address http://www.xuebuyuan.com/200181.
Cheetah free WiFi is a lot of internet users in the use of WiFi software, so many users do not set up the router can easily enjoy WiFi signal. However, recently the cheetah free WiFi users reflect that: mobile phone connected to the cheetah free WiFi signal, the speed is very slow, brush a micro bo can not brush. Today's small series to give you analysis, the cheetah free WiFi
the following figure.
Note: U disk format will empty U disk all the data, if the U disk, there are important data, please back up the format of the first.
Two, U disk format into NTFS, and then to the U disk, transfer files, the timely rate can reach near 80mb/s, speed above the lack of 5mb/s, can be described as the speed of a big upgrade, as shown in the following figure.
Of co
All say shut down and boot speed is a lot of users care about one of the problems, who hope that they do not have to wait to enter the system, so there are so many ways to optimize the system, but in fact in the optimization before we should find out, to drag down the Windows system startup speed factors are there?
1, USB hard drives and scanners and other equipment
If your computer's deep XP system downl
is restored to 27 m/s.
Note:
In Windows 2000/XP/2003, there is such a setting: Windows IDE/atapi port driver (atapi. sys) after receiving a total of six timeout or cyclic redundancy check (CRC) errors, the driver will forward the communication speed (transport mode) from the fastest Direct Memory Access (DMA) the mode is step-by-step reduced to a
The boot speed is slow, the shutdown speed is slow, it seems that the computer permanent is easy to have such a problem, but the speed is still a bit slow to make sense, but slow too lo
This article is about to solve the laptop boot speed slow:
notebook boot speed slow is a normal phenomenon. In general, laptops and desktops that are configured at the same level are slower to boot than desktops, but are not as normal, and we can use some settings to improve the
aerial backup.
If you hate this slow Wi-Fi speed, but don't want to go back to Ethernet, we offer you some tricks to improve speed.
1. Check your router's ecological settings
Some routers are set to "save Power" mode by default, with the goal of saving a few watts of electricity. However, this commendable approach will reduce bandwidth accordingly. Although I
What is the slow running speed of the WIN8 system?
Reason analysis of slow running speed of Win8
1. You are installed 64-bit or 32-bit system, 32-bit system 2G memory will be a bit slow, if 4G and more points, but will be faster, if the installation of 64-bit system
Pioneer VDR-118chv burner, burn DVD + R disc, according to instructions should be able to 22x speed, but in fact when the disk, speed less than 1x, the entire system becomes very slow, slow response, the sound stops.
Later, we used hdparam/dev/hda to check that DMA was off. Try to enable DMA with hdparam-D1/dev/hda, b
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