From: http://blog.csdn.net/anycell/archive/2008/12/12/3505864.aspx
I encountered the same problem two days ago.
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Today, the customer called to say that our company's server programs could not be started as a system service on the newly installed 64-bit Windows 2003. We initia
Install the 32-bit oracle software in 64-bit linuxIn some cases, sometimes we need to install 32 oracle software on a 64-bit system (for example, the customer's abnormal requirements ). Although theoretically, this method is feasible, but in the actual installation process i
. Type the following command to enable 32-bit mode:13. Type the following command to install the ASP. NET 1.1 version and install the script map in the IIS root directory:%systemroot%\microsoft.net\framework\v1. 1.4322\aspnet_regiis.exe-i4Make sure that the status of the ASP. NET version 1.1.4322 is set to allow in the Web service Extensions list in Internet Information Services Manager. ASP. NET 2.0, 32-bit
1. in Linux, how does one determine whether your CPU is 32-bit or 64-bit?
Run the following command:View plain
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Print
?
Grep flags/proc/cpuinfo
Grep flags/proc/cpuinfo
Output
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Flags: fpu vme de pse tsc msr pae mce cx8 APIC Sep mtrr pge mca cmov Pat limit 36 clflush dts acpi mmx fxsr SSE sse2 SS HT TM NX LM
dynamic Sybase library? Still trying... Comments
Today, I was dizzy. I didn't even find a library called libsybcs64.so... Modify cmakelists. Finally compiled.
Step 6: I started my postgraduate study. I checked the source code of Poco and the location where the compilation error was reported. Let's change it! Some function calls are incorrect (for example, copystream, copystream64 should be called in 64-Bit
Install 32-bit oracle software in 64-bit linuxIn some cases, sometimes we need to install 32 oracle software on a 64-bit system (for example, the customer's abnormal requirements ). Although theoretically, this method is feasible, but in the actual installation process is of
Bootinfo-y number of processor digits
Number of bootinfo-k kernel digits
1, how to Switch AIX5.1 from 32-bit to 64-bit:
Ln-sf/usr/lib/boot/unix_64/unix
Ln-sf/usr/lib/boot/unix_64/usr/lib/boot/unix
Lslv-m HD5
Bosboot-ad/dev/ipldevice
Shutdown-fr
2, how to Switch AIX5.1 from 64-bit
Migrate the oracle database from the 32-bit platform to the 64-bit
The disk of the customer's 32-bit oracle database system is damaged. Fortunately, the oracle database is intact. The customer requested that the database be migrated to the newly purchased device. The memory of the new device is
In some cases, there are times when we need to install 32 of Oracle software on 64-bit systems (for example, the customer's perverted requirements). Although in theory, this approach is feasible, but in the actual installation process is often wrong, in order to avoid unnecessary errors, but also for the convenience of future work to find, record the installation process.This example uses the redhat4--
After reading the upgrade documents provided by Oracle, the upgrade failed several times according to the method described above. After more experiments, the upgrade is successful. Now I will share the upgrade process with you.
1. Install Oracle 10 Gb to a 64-bit system. Do not create a database.
2. Shut down the original 32-bit dB and copy all data files to the
PyCharm is installed on the 64-bit System of win10, and pycharmwin1064-bit
I have previously introduced many other systems for installing PyCharm. If you are interested, refer:
Pycharm experience (1) Installation and first use
Python installation tutorial Pycharm installation tutorial
Python and PyCharm installation and usage (for Mac)
What I want to share with y
(New object ()); SYSTEM.OUT.PRINTLN ("int" +sizeofobject.sizeof (a)); System.out.println ("byte[2]" +sizeofobject.sizeof (b)); System.out.println ("Char" +sizeofobject.sizeof (c)); Specific actions refer to the previous note, mainly using the instrumentation API, which has a method called Getobjectsize () which runs the following results (I am the jdk1.7 64: Default turn on pointer compression): Object header: 32-
that when the program is 64-bit compiled, the performance of C ++ is greatly improved, and the performance of C # is almost unchanged.
The two calculation accuracy should be the same. C ++ is because the output format scientific notation hides the decimals
Conclusion:
1. C # In WinForm and command line, the mathematical computing performance is equivalent
2. The performance of C # In 32bit is good
operating system can be stored in the memory, which is several times faster than they are on the hard disk. Of course, at present, computers in the world do not have 18 Pb of memory, but some itanium-based servers have as much memory as GB. Based on the current development trend, in the near future, both programs and computers will push the demand for memory to exceed this number.
12. At present, applications are also likely to boost demand for disk
thunder in Ubuntu Linux, both 32-bit and 64-bit can be installed successfully.
The testing environment is Ubuntu 10.10 + thunder 0.6.
1. Download the thunder DEB installation package (see the http://www.linuxidc.com/Linux/2010-12/30644.htm for download), the installation is very simple. Download and unzip the wine-t
-digit 4th paragraph is 0101; 64-digit 4th is 0102.-H means 16-in-2-byte integer view, integer high and low bit adjusted (such as 7f45 to 457f);-N 10 means view 10 bytes
#od-H-N 32.so0000000 457f 464c 0101 0001 0000
#od-H-N 64.so0000000 457f 464c 0102 0001 0000 Solaris
Similar to Linux, only the Linux-h parameter becomes-X. In addition, the results are not the sa
value changes. The return value of the 64-bit Basm method also has some transformations, the general return value is either EAX or Rax, most notably the ability to return a 64-bit integer type with Rax instead of using Edx:eax to return. The return value of a floating-point number is the most varied, as the previous 3
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