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Using rsync is surprising fast and simple.

mkdir empty_dir
rsync -a --delete empty_dir/    yourdirectory/

@sarath's answer mentioned another fast choice: Perl! Its benchmarks are faster than rsync -a --delete.

cd yourdirectory
perl -e 'for(<*>){((stat)[9]<(unlink))}'

or, without the stat (it's debatable whether it is needed, and some says that may be faster with it, and others says it's faster without it),

cd yourdirectory
perl -e 'for(<*>){unlink}'

Sources:

1. https://stackoverflow.com/questions/1795370/unix-fast-remove-directory-for-cleaning-up-daily-builds
2. http://www.slashroot.in/which-is-the-fastest-method-to-delete-files-in-linux
3. https://www.quora.com/Linux-why-stat+unlink-can-be-faster-than-a-single-unlink/answer/Kent-Fredric?srid=O9EW&share=1

Using rsync is surprising fast and simple.

mkdir empty_dir
rsync -a --delete empty_dir/    yourdirectory/

@sarath's answer mentioned another fast choice: Perl!  Its benchmarks are faster than rsync -a --delete.

cd yourdirectory
perl -e 'for(<*>){((stat)[9]<(unlink))}'

or, without the stat (it's debatable whether it is needed; some say that may be faster with it, and others say it's faster without it):

cd yourdirectory
perl -e 'for(<*>){unlink}'

Sources:

1. https://stackoverflow.com/questions/1795370/unix-fast-remove-directory-for-cleaning-up-daily-builds
2. http://www.slashroot.in/which-is-the-fastest-method-to-delete-files-in-linux
3. https://www.quora.com/Linux-why-stat+unlink-can-be-faster-than-a-single-unlink/answer/Kent-Fredric?srid=O9EW&share=1

Using rsync is surprising fast and simple.

mkdir empty_dir
rsync -a --delete empty_dir/    yourdirectory/

@sarath's answer mentioned another fast choice: Perl! Its benchmarks are faster than rsync -a --delete.

cd yourdirectory
perl -e 'for(<*>){unlink}'

Sources:

1. https://stackoverflow.com/questions/1795370/unix-fast-remove-directory-for-cleaning-up-daily-builds
2. http://www.slashroot.in/which-is-the-fastest-method-to-delete-files-in-linux
3. https://www.quora.com/Linux-why-stat+unlink-can-be-faster-than-a-single-unlink/answer/Kent-Fredric?srid=O9EW&share=1

Using rsync is surprising fast and simple.

mkdir empty_dir
rsync -a --delete empty_dir/    yourdirectory/

@sarath's answer mentioned another fast choice: Perl! Its benchmarks are faster than rsync -a --delete.

cd yourdirectory
perl -e 'for(<*>){((stat)[9]<(unlink))}'

or, without the stat (it's debatable whether it is needed, and some says that may be faster with it, and others says it's faster without it),

cd yourdirectory
perl -e 'for(<*>){unlink}'

Sources:

1. https://stackoverflow.com/questions/1795370/unix-fast-remove-directory-for-cleaning-up-daily-builds
2. http://www.slashroot.in/which-is-the-fastest-method-to-delete-files-in-linux
3. https://www.quora.com/Linux-why-stat+unlink-can-be-faster-than-a-single-unlink/answer/Kent-Fredric?srid=O9EW&share=1

Using rsync is surprising fast and simple.

mkdir empty_dir
rsync -a --delete empty_dir/    yourdirectory/

@sarath's answer mentioned another fast choice: Perl! Its benchmarks are faster than rsync -a --delete.

cd yourdirectory
perl -e 'for(<*>){((stat)[9]<(unlink))}'

Sources:

1. https://stackoverflow.com/questions/1795370/unix-fast-remove-directory-for-cleaning-up-daily-builds
2. http://www.slashroot.in/which-is-the-fastest-method-to-delete-files-in-linux

Using rsync is surprising fast and simple.

mkdir empty_dir
rsync -a --delete empty_dir/    yourdirectory/

@sarath's answer mentioned another fast choice: Perl! Its benchmarks are faster than rsync -a --delete.

cd yourdirectory
perl -e 'for(<*>){unlink}'

Sources:

1. https://stackoverflow.com/questions/1795370/unix-fast-remove-directory-for-cleaning-up-daily-builds
2. http://www.slashroot.in/which-is-the-fastest-method-to-delete-files-in-linux
3. https://www.quora.com/Linux-why-stat+unlink-can-be-faster-than-a-single-unlink/answer/Kent-Fredric?srid=O9EW&share=1