How to get the size of physical memory by using system call ?
how to get the size of physical memory by using system call ?What system call can be used for me to get the size of physical memor? thanks.
%vmstat 3
procs memory page disk faults cpu
r b w swap free re mf pi po fr de sr s0 -- -- -- in sy cs us sy id
0 0 0 3025816 994456 4 19 6 0 0 0 0 8 0 0 0 459 253 139 1 1 99
0 0 0 2864688 777408 0 2 0 0 0 0 0 3 0 0 0 428 134 175 0 1 99
0 0 0 2864688 777408 0 0 0 0 0 0 0 7 0 0 0 448 112 166 0 0 100
one interesting observation about vmstat I found out is (mostly on Solaris)
the first line of information always off chart, so I usually do a few interval to get constant result.
if you use linux
just
cat /proc/meminfo
Similar Messages
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How to get physical memory by using system call ?
how to get physical memory by using system call ?What system call can I use.thanks
Use sysconf(3C) with SCPHYS_PAGES
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How to get the size of free memory in unix?
I have one oracle database running in unix, and I want to tune the memory used.
additional, I want to create another database in this server.
I don't know how many memory left in it.
Could you tell which unix commands can be used to find out the size of free memory?
Thanks%vmstat 3
procs memory page disk faults cpu
r b w swap free re mf pi po fr de sr s0 -- -- -- in sy cs us sy id
0 0 0 3025816 994456 4 19 6 0 0 0 0 8 0 0 0 459 253 139 1 1 99
0 0 0 2864688 777408 0 2 0 0 0 0 0 3 0 0 0 428 134 175 0 1 99
0 0 0 2864688 777408 0 0 0 0 0 0 0 7 0 0 0 448 112 166 0 0 100
one interesting observation about vmstat I found out is (mostly on Solaris)
the first line of information always off chart, so I usually do a few interval to get constant result.
if you use linux
just
cat /proc/meminfo -
How to get the size of driver[C: or D:]
Hi Friends,
I have a query regarding to java..
I want to get the name of all the drives that r connected to the System including network drives...
and how to get the size of any system drive[For example C: or D: Drive].
I want the output to be displayed like in the following format
Device type size free Usage_Space
for ex.
C: NTFS 37.5Gb 30.5gb 7gb
Output like as linux command df -h
Edited by: KituPrash on Mar 4, 2009 3:29 AMDoes this help for starters?
File[] roots= File.listRoots();
for (int i= 0; i< roots.length; i++)
System.out.println(roots[i]+": "+roots.getTotalSpace());kind regards,
Jos -
How to get the size of partition?
The following SQL will get the rows of the fact table & aggregation. But how to get the size (MB) of the partition. select * from $system.discover_partition_stat That should be doable, because in BIDS, we can see the size of a partition, but from which
view we can do that?This is the best bet you have SELECT * FROM SystemRestrictSchema($system.discover_partition_stat ,DATABASE_NAME = 'Adventure Works DW' ,CUBE_NAME = 'Adventure Works' ,MEASURE_GROUP_NAME = 'Internet Sales' ,PARTITION_NAME = 'Internet_Sales_2003') Refer
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How to get the size of the webpage?
I am designing a program to
analyse the webpage content.
wondering how to get the size of
the webpage including its image's
size and etc. Thanks in advance.As i know , the getContentLength just return
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By knowing the length of the HTML code, is
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How to get the size of a hard disk?
Hi,
As above, how to get the size of a hard disk by using Java.
Thanks you!
AlexI would be interested in the answer of this question, too.
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How to get the size of the table
Hi All,
How to get the size of the table in Oracle 10g?
Is there any script which needs to be run?
Regards,
ApoorvHi All,
Sorry but somehow the table user_segments is not populated in my case. But we have another table SYS.ALL_TABLES whose structure is given below. Would I be able to calculate the table size based on the columns given below:
ColumnName Data Type
OWNER VARCHAR2 (30 Byte)
TABLE_NAME VARCHAR2 (30 Byte)
TABLESPACE_NAME VARCHAR2 (30 Byte)
CLUSTER_NAME VARCHAR2 (30 Byte)
IOT_NAME VARCHAR2 (30 Byte)
STATUS VARCHAR2 (8 Byte)
PCT_FREE NUMBER
PCT_USED NUMBER
INI_TRANS NUMBER
MAX_TRANS NUMBER
INITIAL_EXTENT NUMBER
NEXT_EXTENT NUMBER
MIN_EXTENTS NUMBER
MAX_EXTENTS NUMBER
PCT_INCREASE NUMBER
FREELISTS NUMBER
FREELIST_GROUPS NUMBER
LOGGING VARCHAR2 (3 Byte)
BACKED_UP VARCHAR2 (1 Byte)
NUM_ROWS NUMBER
BLOCKS NUMBER
EMPTY_BLOCKS NUMBER
AVG_SPACE NUMBER
CHAIN_CNT NUMBER
AVG_ROW_LEN NUMBER
AVG_SPACE_FREELIST_BLOCKS NUMBER
NUM_FREELIST_BLOCKS NUMBER
DEGREE VARCHAR2 (10 Byte)
INSTANCES VARCHAR2 (10 Byte)
CACHE VARCHAR2 (5 Byte)
TABLE_LOCK VARCHAR2 (8 Byte)
SAMPLE_SIZE NUMBER
LAST_ANALYZED DATE
PARTITIONED VARCHAR2 (3 Byte)
IOT_TYPE VARCHAR2 (12 Byte)
TEMPORARY VARCHAR2 (1 Byte)
SECONDARY VARCHAR2 (1 Byte)
NESTED VARCHAR2 (3 Byte)
BUFFER_POOL VARCHAR2 (7 Byte)
ROW_MOVEMENT VARCHAR2 (8 Byte)
GLOBAL_STATS VARCHAR2 (3 Byte)
USER_STATS VARCHAR2 (3 Byte)
DURATION VARCHAR2 (15 Byte)
SKIP_CORRUPT VARCHAR2 (8 Byte)
MONITORING VARCHAR2 (3 Byte)
CLUSTER_OWNER VARCHAR2 (30 Byte)
DEPENDENCIES VARCHAR2 (8 Byte)
COMPRESSION VARCHAR2 (8 Byte)
DROPPED VARCHAR2 (3 Byte) -
I am trying to figure out how to get the total allocated CPUs, memory and storage in a particualr reservation through vRealize Automation Java SDK.
I am trying to figure out how to get the total allocated CPUs, memory and storage in a particualr reservation through vRealize Automation Java SDK.
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How to get the values from struct data type using java code..?
Hi ,
I am newer to java.
we are using oracle database.
How to get the data from struct data type using java code.
Thanks in Advance.
Regards,
kumarHi Rajeev,
To retrieve a FilterContainer you will need to traverse the report structure:
ReportStructure boReportStructure = boDocumentInstance.getStructure();
ReportContainer boReportContainer = (ReportContainer) boReportStructure.getReportElement(0);
FilterContainer boFilterContainer = null;
if (boReportContainer.hasFilter()) {
boFilterContainer = boReportContainer.getFilter();
} else {
boFilterContainer = boReportContainer.createFilter(LogicalOperator.AND);
Calling boDocumentInstance.getStructure() will retrieve the entire structure for the document.
Calling boReportStructure.getReportElement(0) will retrieve the structure for the first report of the document.
Hope this helps.
Regards,
Dan -
How to get the customize url of an portlet using PLSQL
How to get the customize url of an portlet using PLSQL.
Are you trying to call the portlet Customization form directly from the browser?
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How to get the size of the cuurrent illustration
Sorry, I made a mistake before this one. The questios is this: can anybody tell me how can I get the size of the current illustration, (as oposed to the page size) in points. Something like 120 points wide and 87 points High?. What function do I need to call?
From AI Function reference (included with CS2 SDK):
AIDocumentSetup setup;
error = sDocument->GetDocumentSetup(&setup);
if (error) goto processError;
writeDocumentSetup( &setup );
The AIDocumentSetup record returns the following information:
typedef struct {
AIReal width, height;
AIBoolean showPlacedImages;
short pageView;
AIReal outputResolution;
AIBoolean splitLongPaths;
AIBoolean useDefaultScreen;
AIBoolean compatibleGradients;
AIBoolean printTiles;
AIBoolean tileFullPages;
} AIDocumentSetup; -
How to get the size of a file DONE
How can I get the size a file? I want to do the following....
File clobDataFile = new File("clob.dat");
PrintWriter clobpw = new PrintWriter(new BufferedWriter(new FileWriter(clobDataFile)));
int offset = //get the number of chars in the fileOk I am a tard... figured it out...
File clobDataFile = new File("clob.dat");
PrintWriter clobpw = new PrintWriter(new BufferedWriter(new FileWriter(clobDataFile)));
int offset =colbDataFile.length();read API http://java.sun.com/j2se/1.5.0/docs/api/java/io/File.html#length()
next time you have a similar question please refer this document -
How to get the size of the file
Hi All,
I want to get the size of the file in terms of bytes. I used the following code it returns the value in long how can get it in bytes
import java.io.File;
public class ServerBackupCheck {
public static void main(String args[]){
File f = new File("C:/Program Files/Apache Software Foundation/Tomcat 5.5");
System.out.println(f.isDirectory());
System.out.println(f.getTotalSpace());
output:
true
20964163584
regards,
Maheshwaran Devarajif it is a folder you can use this recursive algorithm
public static long recurse(File f) throws IOException
long bytes = 0;
File files[] = f.listFiles();
for(int i =0 ;i<files.length;i++)
File file = files ;
if(file.isFile())
FileInputStream fis = new FileInputStream(file);
byte[] by = new byte[fis.available()];
fis.read(by);
bytes = bytes + by.length;
if(file.isDirectory())
bytes = bytes + recurse(file);
return bytes;
System.out.println(recurse(f)); gives you the total bytes....
Ayberk Cansever .. -
Hi
I want to know the size of the file from Java. ie If i have 10 lines in that file each of 15 characters
then 10 *2*10=200Bytes is the size. How will i get this?
More over, if i am reading the 4 the line, how will get the info that I have read 3 lines =3*2*10= 60 bytes so far?
Regards
SriramThis is from the JavaDocs on java.io.File
length
public long length()
Returns the length of the file denoted by this abstract pathname. The return value is unspecified if this pathname denotes a directory.
Returns:
The length, in bytes, of the file denoted by this abstract pathname, or 0L if the file does not exist
Any of the read methods (except readLine()) on the many stream objects return the number of bytes read, simply accumulate these returns to know how many bytes have been read.
Dave
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