Programming :: Resident Set Size Increasing Continuously
Jun 13, 2010
I am working on a C++ application, using the latest Slax as distro and CodeBlocks 8.02 as IDE.
I have a problem that is really biting me hard... And i'm sorry if my questions will sound trivial: i'm still a C++ noob...
Basically,looking with KSysGuard i can notice a constant increment of the VmRss parameter,i.e. the resident set size of my program.
While stepping with the debugger i noticed that the VmRss parameter increases by 4 (KB?) when i push_back into some STL vectors (i have this problem in various parts of the code).
While i analyze the problem with KSysGuard i'm also looking at the /proc/statm file of my process. When KSysGuard shows a VmRss increment by 4, i can actually see an increment (by 1) in the 2nd parameter of that file (which is the resident set size) but not in the 1st parameter (which is the total program size).
What surprises me most is that the VmRss is reported in KB and i really am not pushing 4 KB inside the vector all at once...
So i ask:
1)Is this a memory leak?
2)Why the total program size doesn't increase?
3)To me, it looks like VmRss increases "cumulatively" only after several insertions in the various vectors.
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Jan 23, 2011
I seem to only be able to set my stack size on my linux server to 15000. If I increase it to 20000 I get a Segmentation Fault. how I can get the linux OS to increase the stack size? Code: threadRet |= pthread_attr_setstacksize( &m_ThreadAttributes, 15000 );
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Jul 28, 2010
As I have a opt/sybase folder in Linxs I want to increase the size of this folder how can I increase it? For example the size we mention at the time of installation Sybase is 2gb now I want to increase by 4gb how can I increase it.
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Jul 29, 2011
I am running Fedora 15 along with Windows 7 on my Dell laptop. Yesterday, when I was trying to install TeX Live, it stopped in between saying that there is no space left in File System. Even though I have space in my hard drive volumes, space seems to be running out of my system partition which is only 9GB in size (I guess!).I am posting a few results that might help you guys. I have an unformatted 15GB partition. How can I add it to my system partition? And is my var folder too big (1.5GB)? If yes, how do I backup its contents and then delete them? Additionally, the File System shows a folder 'media' (89GB) which links the C: drive that contains Windows 7 and my personal files. Should it remain that way or should I separate it? If the latter, how? I just couldn't find any.
Code:
#df -h
Filesystem Size Used Avail Use% Mounted on
[code]....
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May 17, 2010
i got low space left on my home folder .. i installed ubuntu and set home folder's size to 20 gbs and 70 gbs for my "/" partition , 2gbs for swap.Is there a way to increse those 20 gbs ? maybe take a lil from my "/" partition?
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Feb 26, 2011
I am using ubuntu lucid.as a desktop and don't run a server. The editor I use is vim so increasing font by edit > profile preferences. What I need to know is how to increase the size in console ie. when I use Ctrl +Alt + F1 to F6. On running xrandr I get this :
[Code]...
I know that,the graphical user interface ( using X windows , I think ) sits on top of the base system ie F1 to F6. In the Fs , xrandr replies "Can't open display ". The question is am I right in thinking that "gui" is totally independant of the base ( is that the correct word ?). I have read that messing about with resolution can wreck a monitor ( I'm using a laptop) , is there a safe way to proceed?
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Jun 21, 2010
ecently I tried to increase the size of my swap partition using GParted, but it wouldn't let me. I wondering if there was another way? Currently it's 795 MB but I want it to be 1GB
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Sep 6, 2010
Based on the reading I've done over the past 48 hours I think I'm in serious trouble here with my RAID 5 array. I got another 1 TB drive and added to my other 3 to increase my space to 3 TB...no problem.
While the array was resyncing...it got to about 40%, I had a power failure. So I'm pretty sure it failed while it was growing the array...not the partition. Next time I booted mdadm didn't even detect the array. I fiddled around trying to get mdadm to recognize my array, but no luck.
I finally got desperate enough to just create the array again...I knew the settings of my and had seen some people have success with this method. When creating it, it asked me if I was sure because the disks appeared to belong to an array already, but I said yes. The problem is when I created it, it created a clean array and this is what I'm left with.
Code:
/dev/md0:
Version : 00.90
Creation Time : Sun Sep 5 20:01:08 2010
Raid Level : raid5
Array Size : 2930279808 (2794.53 GiB 3000.61 GB)
[Code]....
I tried looking for backup superblock locations using e2fsck and every other tool I could find, but nothing worked. I tried testdisk which says it found my partition on /dev/md0, so I let it create the partition. Now I have a /dev/md0p1, which won't let me mount it either. What's interesting is gparted reports /dev/md0p1 as the old partition size (1.82 TB)...the data has to still be there, right?
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Jun 15, 2010
I'm currently setting up a server with 2x 1TB disks in raid1. (Centos 5.5)In the future, if the storage is insufficient and I decide to upgrade the disks to 2x 2TB, could I just:
- dump ghost image of the array on usb drive
- replace hdd's and build new array
- ghost array with image created previously
Would the above work, will the new partition automatically resize to 2TB or do I need to partition right now with LVM? would it work with LVM?
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Jun 28, 2010
On a full update centos 5.5 64 bit every day increases slab cache , specialy size-2048 eat a lot of memory ..
how can change this ? maybe a kernel bug ?
cat /proc/slabinfo
slabinfo - version: 2.1
# name <active_objs> <num_objs> <objsize> <objperslab> <pagesperslab> : tunables <limit> <batchcount> <sharedfactor> : slabdata <active_slabs> <num_slabs> <sharedavail>
[Code]....
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Jul 9, 2010
In my Solaris tcp client server program, In server side I am checking the size of recv buffer, based on different listen queue size.
I was expecting this size to be increased due to the increase in receive queue size. why the value is same ?
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Apr 6, 2010
is it possible to extend a mirrored veritas volume which has two SAN LUNs each one in a seperate EMC storage box.
i need to add diska -> EMC box1
and diskb -> EMC box 2
then i need to increase the size of the mirrored volume.
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Jan 27, 2011
I have installed ubuntu 10.10 inside windows 7. I have allocated 15 GB hard disc size for it which is almost filled. So I want to increase the size of hard disc partition allocated for ubuntu 10.10. Can i do that? If yes then how?
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Jan 4, 2010
I recently installed Bio-Linux 5.0 as a dual boot system with XP for some bioinformatics applications, but Im having some problems with the amount of disk space which can be allocated specifically for the Ubuntu install.
I partitioned a 250 GB portable hard drive into:
/dev/sdb1: 154.76 GiB (with 30 GiB allocated for Ubuntu)
/dev/sdb2 : 78.13 GiB
Ive been using blastclust to analyse some very large data sets, which keeps on crashing due to filesystem running out of disk space.
When I installed Bio-Linux 5.0 from the live cd, the maximum size I could allocate to the install was 30 GiB, and I havent been able to find a way to change this.
Ive tried using System->Administration->Partition Editor using the live cd, and can view / delete the partitions, but I cant find a way to specifically alter the disk space allocation for Ubuntu.
How do I increase the filesystem size to larger than the current 30 GiB?
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Jun 24, 2010
Squid servers cache size ondisk automatically increasing and decreasing,how I would resolve this issue
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Nov 23, 2010
In a lot of programs I write, I would love the option to simply hit a key without disturbing the data, and have some other action take place.
An example loop would be,
Code:
for(some var = 0; some var != infinity; some var++){
if(poll(left mouse button)){ stop doing this stuff; }
.
.
.
doing other stuff, because the left mouse button wasn't pressed
}
but, I don't want the loop to pause for more than a the tiniest fraction of a second, and I certainly don't want it to sit there waiting for me to do, or not do, something.
What is it I'm looking for?
(Oh, and if you haven't guessed, c/c++ are the languages of choice for this operation - I don't care which you might have in mind when submitting an answer -- in fact, it need not be either of those languages.)
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Dec 1, 2010
I have two threads & i want to run it continuously ,with while(1) it is possible . Is there any other way to run the threads continuously
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May 18, 2010
I've got a server that needs more space. To achieve this we added space (by extending the VMware disk attached to it).Normally this isn't an issue, because we just add an new partition and LVM it from there, but this host predates our deployment of LVM everywhere.
Our current theory is that the unallocated sectors can not be assigned because they aren't part of the extended partition, and thus ... we go in a circle.So what i believe the way forward is to extend sda4 so that i can then create an sda10 inside of it. Anyone have any ideas on how to do this? I was thinking gparted may do the trick ... but being a server i'm in runlevel3, with no X...
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Nov 16, 2010
I'm installing things in a new Red Hat server and saw that the /var folder is full (100%). I need this folder to have more space or another kind of solution because this server is going to be used as a print server.
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Oct 13, 2010
Code:
if ! [ -f ${PATH}/myfile.txt ];then
echo $(date +%Y%m%d"_"%H%M%S)": Nu am gasit fisierul ${PATH}/myfile.txt"
ps -fxu pin | grep "/usr/local/coreutils/bin/tail -f ${LOG_PATH}/x.log$" | awk '{system("kill "$2)}'
cat ${LOG_PATH}/x.log | sed -n -e '/LONG/{x;1!p;g;;}' -e h > ${PATH}/myfile.txt
[code]....
I have a continuously growing log file (x.log) in which i have to look for certain lines that contain "Long". The line above each line containing the word "Long" it contains a time stamp. I want to extract each line containing the time stamp into myfile.txt and check the difference between time stamps. Whenever there is a difference i need to run another script (${CAL_PATH}/${APP_NAME}), then sleep 1, then continue searching. Lines with "Long" do not appear continuously, but in blasts. The script runs fine until the first pause encountered. Starting with the first pause, tail -f doesn't write in myfile.txt anymore. Can someone help me understand why "tail -f" it stops writing into myfile.txt? Or does someone know an alternative to "tail -f" of achieving the initial scope of the script?
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Feb 16, 2010
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Mar 5, 2010
First time here at LQ, so if the post is in the wrong place, this is a bit programming related. I've been trying to find the maximum resident memory of a process in a memory constraint situation.
Instead of using top, or ps, which gives me real-time snapshot at the memory usage of a process, is there a way to determine the maximum resident memory used by a process? /usr/bin/time seem to provide this functionality within the format string
[Code]...
The minor page-fault is suspicious, does that mean memory is being used.. but not recorded? if so, how can I know how much memory is being mapped?
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Feb 3, 2010
we found that if we use 'top' to show the memory usage of a server (SuSe Linux 10), we can get virtual memory usage as well as 'Resident memory' usage. For virtual mem or a particular process, it is around 1.1GB, which is large but for resident memory, it only consumes 300MB. Are there anyone who knows what the differences are? I would also like to know whether the difference (1.1GB - 300MB) = 800MB are actually available for use by other applications in the system.
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May 1, 2011
I am doing prime number research and I need to know what the max int size is? Does gcc support any other number declarations that would be better than just plain old int (this is in C BTW) that allow for integer handling?
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Jul 18, 2011
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Also in variable types, what's the different between and int, size and ssize?
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Dec 28, 2010
I want to read a file in C, but i dont know the size of the file. Is there any way to find the size of the file in C...?
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Mar 25, 2010
script that will check if my log file is a certain size? EX: I want to limit the size of my rsync log to say 5MB, if that's true I would move it and create a new one.
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Apr 3, 2010
Using bash, is it possible to get the average file size of each file in a directory of ~2000 files?
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May 1, 2011
Why is it in Linux that there is a stack size set by default? And why is it so small? (My system is set to 8192 kbytes.) And why is there a default limit on the stack size when the max memory and virtual memory size are, by default, unlimited? (Aren't they both fed from the same place ultimately?)
Reason I ask: I want to use recursive functions in my programming a lot more. Problem is, if the language (or implementation) doesn't happen to support tail-call recursion, then I can be pretty well certain that the first huge problem that gets thrown at my function is going to kill my program because the stack size limit is going to be quickly reached. Obviously, I can change the stack size limit for my own computers, but it doesn't feel so great knowing that most of the people who copy and execute my code will have probably have overlooked this. Anyway, does anyone know: is this small default stack size limit just one of those historical artifacts, or is there some technical reason for it?
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Mar 10, 2009
i am trying to find the size of an array, not by using the array as a parameter to "sizeof", but by using a pointer -pointing to the array- as a parameter. How do i do this?I use a 32-bit PC.Here's:
Code:
#include <string>
#include <iostream>
[code]...
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