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how to get size of folder including apparent size of sparse files? (du is too slow)

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http://stackoverflow.com – I have a folder containing a lot of KVM qcow2 files, they are all sparse files. Now I need to get the total size of folder, the qcow2 file size should be counted as apparent size(not real size). for example: image: c9f38caf104b4d338cc1bbdd640dca89.qcow2 file format: qcow2 virtual size: 100G (107374182400 bytes) disk size: 3.3M cluster_size: 65536 the image should be treated as 100G but not 3.3M originally I use statvfs() but it can only return real size of the folder. then I switch to 'du --apparent-size', but it's too slow given I have 10000+ files and it takes almost 5 minutes to caculat (HowTos)

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Submitted by dadebian on 12/20/2012

Stories similar to how to get size of folder including apparent size of sparse files? (du is too slow)

I have come to figure out that qemu-img will only create sparse qcow2 images. I even tried creating a raw file then converting but as soon as I convert it also converts to a sparse file. I don't get why during the original install using virt-install doesn't do this.

I am trying to add a disk image to a windows 2008 server guest.

Don't worry, this isn't typical "du vs. df" question. :-) I mounted a squashfs image (via loop) and used du to reported the size: du --apparent-size -lsh image1/ which reported 215M. Then I used rsync ("rsync -aS") to copy all files to a real partition (ext4). To my surprise du reports for this directory now: 302M. Where do the additional 87MB come from?

Corrupt qcow2 image 44 weeks 4 days ago

I seem to have corrupted my qcow2 image. I accidentally ran qemu-img create on one of my virtual machines while running.

From the man page of logrotate:

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Given the size of a file in bytes, I want to format it in kibibytes, mebibytes etc. to 3 significant figures with trailing zeros, e.g. 1883954 becomes 1.80M. Floating-point arithmetic isn't supported in bash, so I used awk instead. The problem is I don't how to keep the trailing zeros.

Hi! I started my Linux adventure just few weeks ago. Here's my biggest problem yet... :wall:

How to get total size in bytes of all files inside directory?

So far I've found this solution: du -bs /path_to_my_directory

But it's not good. It gives me total size in bytes of all files inside directory and its subdirectories - that's cool - but it also adds the size of the directory itself.

Files have same size 34 weeks 6 days ago

Hello,

I want remove files have same size in a directory. this command only find this files.

Code: ls -l | awk '$1!~/^d/{if(size[$5]!=""){ print}size[$5]=$8}' I want to remove the files of the same size. samples: 5 files are same size. I want to keep only first file.

Thank you very much for your help.

[SOLVED] KVM syntax error 2 years 30 weeks ago

I've got KVM installed on my Slackware -current box, but am having trouble creating a disc image.

I am facing typical "size on disk" issue on windows 2008 OS.

I am using NTFS partition with cluster size of 4k and in that Size of disk is almost triple the real size. This is becaus I have large number of small files in the system.

I tries to reduce the cluster size to 2kb but in that also but that also didnt help me to reduce the "size on disk" very much.