07-03-2010
Is the OS 32-bit or 64-bit? In a 32-bit program, the per-process maximum memory limit is 4GB no matter how much more the OS may have available.
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1. Programming
For example if i have the piece of code as follows:
CountryName = (char *)malloc((strlen(CountryName)+1)*sizeof(char));
memset(CountryName, 0, strlen(CountryName)+1);
CountryName = SOME VALUE
Now how do i free the memory after use of this code???? :confused: (3 Replies)
Discussion started by: jazz
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2. AIX
Hi,
how to find free memory in aix? for installing oracle,I have used svmon but not getting proper output (1 Reply)
Discussion started by: manoj.solaris
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3. Solaris
Hi,
Im working on Solaris 9 on SPARC-32 bit running on an Ultra-80, and I have to find out the following:-
1. Total Physical Memory in the system(total RAM).
2. Available Physical Memory(i.e. RAM Usage)
3. Total (Logical) Memory in the system
4. Available (Logical) Memory.
I know... (4 Replies)
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4. Solaris
Hi all,
Could please let me know how to get the more memory free space (not added the RAM) in local zone.
-bash-3.00# vmstat 2 5
kthr memory page disk faults cpu
r b w swap free re mf pi po fr de sr s0 s1 s1 s1 in sy cs us sy... (3 Replies)
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5. Red Hat
hi, I have done the below, but am confused as to how much memory is "free"
please help
thanks
$ free
total used free shared buffers cached
Mem: 132033488 48827536 83205952 0 1007696 45404632
-/+ buffers/cache: 2415208 ... (7 Replies)
Discussion started by: JamesByars
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6. Web Development
Any clues on how to get rid of this PHP error?
PHP Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 71 bytes) in /website/www/includes/functions_manpages.php on line 58
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7. Shell Programming and Scripting
While running script I am getting an error like
Few lines in data are not being processed.
After googling it I came to know that adding such line would give some memory to it
ini_set("memory_limit","64M");
my input file size is 1 GB.
Is that memory limit is based on RAM we have on... (1 Reply)
Discussion started by: elamurugu
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8. Programming
Hi guys.
I've a question, if we are using a syscall that receives a string allocated dynamicaly to a determined size, or NUL and it will allocate the apropriate size. We should free the memory or the OS will do it for us?
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9. Shell Programming and Scripting
I have two files:
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2. A huge list of words approximately 8 million of them. (words_file.txt). Each word is separated by a newline.
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LEARN ABOUT CENTOS
pcrelimits
PCRELIMITS(3) Library Functions Manual PCRELIMITS(3)
NAME
PCRE - Perl-compatible regular expressions
SIZE AND OTHER LIMITATIONS
There are some size limitations in PCRE but it is hoped that they will never in practice be relevant.
The maximum length of a compiled pattern is approximately 64K data units (bytes for the 8-bit library, 32-bit units for the 32-bit library,
and 32-bit units for the 32-bit library) if PCRE is compiled with the default internal linkage size of 2 bytes. If you want to process reg-
ular expressions that are truly enormous, you can compile PCRE with an internal linkage size of 3 or 4 (when building the 16-bit or 32-bit
library, 3 is rounded up to 4). See the README file in the source distribution and the pcrebuild documentation for details. In these cases
the limit is substantially larger. However, the speed of execution is slower.
All values in repeating quantifiers must be less than 65536.
There is no limit to the number of parenthesized subpatterns, but there can be no more than 65535 capturing subpatterns.
There is a limit to the number of forward references to subsequent subpatterns of around 200,000. Repeated forward references with fixed
upper limits, for example, (?2){0,100} when subpattern number 2 is to the right, are included in the count. There is no limit to the number
of backward references.
The maximum length of name for a named subpattern is 32 characters, and the maximum number of named subpatterns is 10000.
The maximum length of a name in a (*MARK), (*PRUNE), (*SKIP), or (*THEN) verb is 255 for the 8-bit library and 65535 for the 16-bit and
32-bit library.
The maximum length of a subject string is the largest positive number that an integer variable can hold. However, when using the tradi-
tional matching function, PCRE uses recursion to handle subpatterns and indefinite repetition. This means that the available stack space
may limit the size of a subject string that can be processed by certain patterns. For a discussion of stack issues, see the pcrestack docu-
mentation.
AUTHOR
Philip Hazel
University Computing Service
Cambridge CB2 3QH, England.
REVISION
Last updated: 04 May 2012
Copyright (c) 1997-2012 University of Cambridge.
PCRE 8.30 24 June 2012 PCRELIMITS(3)