Как удалить директорию в которой больше 1КК файлов?

find /var/lib/pp5/ -type f -print -delete

strace rm -rf /var/lib/pp5/
execve("/bin/rm", ["rm", "-rf", "/var/lib/pp5/"], [/* 20 vars */]) = 0
brk(0)                                  = 0x1e3d000
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f814188d000
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY)      = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=35851, ...}) = 0
mmap(NULL, 35851, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f8141884000
close(3)                                = 0
access("/etc/ld.so.nohwcap", F_OK)      = -1 ENOENT (No such file or directory)
open("/lib/x86_64-linux-gnu/libc.so.6", O_RDONLY) = 3
read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\300\357\1\0\0\0\0\0"..., 832) = 832
fstat(3, {st_mode=S_IFREG|0755, st_size=1603600, ...}) = 0
mmap(NULL, 3717176, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x7f81412e4000
mprotect(0x7f8141466000, 2097152, PROT_NONE) = 0
mmap(0x7f8141666000, 20480, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x182000) = 0x7f8141666000
mmap(0x7f814166b000, 18488, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x7f814166b000
close(3)                                = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8141883000
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8141882000
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8141881000
arch_prctl(ARCH_SET_FS, 0x7f8141882700) = 0
mprotect(0x7f8141666000, 16384, PROT_READ) = 0
mprotect(0x60d000, 4096, PROT_READ)     = 0
mprotect(0x7f814188f000, 4096, PROT_READ) = 0
munmap(0x7f8141884000, 35851)           = 0
brk(0)                                  = 0x1e3d000
brk(0x1e5e000)                          = 0x1e5e000
open("/usr/lib/locale/locale-archive", O_RDONLY) = 3
fstat(3, {st_mode=S_IFREG|0644, st_size=2709120, ...}) = 0
mmap(NULL, 2709120, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7f814104e000
close(3)                                = 0
ioctl(0, SNDCTL_TMR_TIMEBASE or TCGETS, {B38400 opost isig icanon echo ...}) = 0
lstat("/", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
newfstatat(AT_FDCWD, "/var/lib/pp5/", {st_mode=S_IFDIR|0700, st_size=1064390656, ...}, AT_SYMLINK_NOFOLLOW) = 0
openat(AT_FDCWD, "/var/lib/pp5", O_RDONLY|O_NOCTTY|O_NONBLOCK|O_DIRECTORY|O_NOFOLLOW) = 3
fcntl(3, F_GETFD)                       = 0
fcntl(3, F_SETFD, FD_CLOEXEC)           = 0
fstat(3, {st_mode=S_IFDIR|0700, st_size=1064390656, ...}) = 0
fcntl(3, F_GETFL)                       = 0x38800 (flags O_RDONLY|O_NONBLOCK|O_LARGEFILE|O_DIRECTORY|O_NOFOLLOW)
fcntl(3, F_SETFD, FD_CLOEXEC)           = 0
fcntl(3, F_DUPFD, 3)                    = 4
fcntl(4, F_GETFD)                       = 0
fcntl(4, F_SETFD, FD_CLOEXEC)           = 0
getdents(3, 

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

time find ./ -type f -delete

# for i in $(echo *); do 
echo "Deleting : $i"; rm -f $i;

drwxr-xr-x  2 postfix   postfix  4,0K Дек  1  2012 postfix
drwx------  2 root      root    1016M Янв  7 01:39 pp5
drwxr-xr-x  2 root      root     4,0K Мар 31  2014 pycentral

Файловая система                                       Iнодов IИспользовано IСвободно IИспользовано% Cмонтировано в
rootfs                                                 625856         31912    593944             6% /
udev                                                    30557           322     30235             2% /dev
tmpfs                                                   31817           242     31575             1% /run
/dev/disk/by-uuid/f006bc88-c786-42ef-9f14-359a95a5f57e 625856         31912    593944             6% /
tmpfs                                                   31817             2     31815             1% /run/lock
tmpfs                                                   31817             2     31815             1% /run/shm

Файловая система                                       Iнодов IИспользовано IСвободно IИспользовано% Cмонтировано в
rootfs                                                 625856        625856         0           100% /
udev                                                    30557           322     30235             2% /dev
tmpfs                                                   31817           242     31575             1% /run
/dev/disk/by-uuid/f006bc88-c786-42ef-9f14-359a95a5f57e 625856        625856         0           100% /
tmpfs                                                   31817             2     31815             1% /run/lock
tmpfs                                                   31817             2     31815             1% /run/shm

#coding: utf-8

import uuid
import sys

i=0

while 1:
    t_uuid=uuid.uuid4()
    try:
        f=open('session-'+str(t_uuid), 'a')
        f.write(str(t_uuid))
        f.close()
    except:
        sys.exit()
    else:
        i+=1
        print i 

#time rm -rf tmp/

real    7m37.214s
u time rm -rf tmp/

real    7m37.214s
user    0m1.056s
sys     0m11.657s
ser    0m1.056s
sys     0m11.657s

-rw------- 1 www-data www-data 4,6K Янв  7 12:10 sess_vugn30oqvrqme9oh2qpikq5pb0
-rw------- 1 www-data www-data   23 Янв  7 10:37 sess_vuibqu8ak34urvb2ccc1ps8bi2
-rw------- 1 www-data www-data   26 Янв  7 10:23 sess_vulm00spl13p1ekv9pjj78fs92
-rw------- 1 www-data www-data 3,9K Янв  7 09:15 sess_vun4jk36tkavfin2ajrdvrdkk6
-rw------- 1 www-data www-data   23 Янв  7 07:18 sess_vuo2kds7s3m0ctu6d80m5srsk4
-rw------- 1 www-data www-data 4,7K Янв  7 08:48 sess_vuo8mrkc6d2fngrc30gtv3vab4
-rw------- 1 www-data www-data 2,5K Янв  7 06:35 sess_vurqj8vm606tage48olnv10nu2
-rw------- 1 www-data www-data   26 Янв  7 09:22 sess_vusqrcfmbvpolakbfof46dqot3
-rw------- 1 www-data www-data   23 Янв  7 10:32 sess_vv01nm6943qmot6bav0b43mq11
-rw------- 1 www-data www-data  544 Янв  7 10:15 sess_vv0eg6eddq9qjfpqhqh1n9hcv1
-rw------- 1 www-data www-data   23 Янв  7 07:25 sess_vv2dv3adc9hoim6lsjt3ua6mm1
-rw------- 1 www-data www-data 4,6K Янв  7 07:37 sess_vv2v47tj1ug0nttbl2uh3d8dg2
-rw------- 1 www-data www-data 2,5K Янв  7 09:01 sess_vv60g8ph8hf96fhevrt90llft7
-rw------- 1 www-data www-data  12K Янв  7 09:28 sess_vvab8l5pjkpma9rt8rsj4oqkd4
-rw------- 1 www-data www-data   23 Янв  7 06:47 sess_vvh6cduqqiuk0v4ihbdt245u84
-rw------- 1 www-data www-data  388 Янв  7 10:11 sess_vvk5bv21djd4jpu3meds48r757
-rw------- 1 www-data www-data   23 Янв  7 11:23 sess_vvmv1291601imcgj95ds2e11u6
-rw------- 1 www-data www-data 2,5K Янв  7 12:09 sess_vvnk8iv2vqt8npjkumq30t8po7
-rw------- 1 www-data www-data 2,7K Янв  7 10:18 sess_vvo8grjjpj7jdha271t5nnguk0
-rw------- 1 www-data www-data   26 Янв  7 09:22 sess_vvpqfhl7p494g0dvk3al2vbaj7
-rw------- 1 www-data www-data 4,9K Янв  7 06:40 sess_vvr1pc9t1ui563ib12q203rih7
-rw------- 1 www-data www-data   23 Янв  7 11:20 sess_vvtn5b4h9fdm1jitn9qdsu4h77
-rw------- 1 www-data www-data  11K Янв  7 09:27 sess_vvtvdt5lnepuvbvo898biouh33
-rw------- 1 www-data www-data 1,2K Янв  7 08:14 sess_vvvlf7ssbu10cagr5i7hme23t7

mdconfig -a -t malloc -s 2G -u 0
newfs -U -b 4096 -f 512 -i 512 md0
Reduced frags per cylinder group from 14496 to 14480 to enlarge last cyl group
/dev/md0: 2048.0MB (4194304 sectors) block size 4096, fragment size 512
	using 290 cylinder groups of 7.07MB, 1810 blks, 14480 inodes.
	with soft updates

mount -o noatime /dev/md0 /mymem

df -ahi
Filesystem              Size    Used   Avail Capacity iused ifree %iused  Mounted on
...
/dev/md0                1,0G    639M    299M    68%    1,2M  3,0M   28%   /mymem

df -i
/dev/md0               1043795   653995    306296    68% 1176953  3022245   28%   /mymem

time ls /mymem|wc -l
 1176951
ls -GF /mymem  12,99s user 7,69s system 3% cpu 20,714 total
wc -l  0,54s user 0,01s system 3% cpu 20,712 total
time rm -rf /mymem 
rm -rf /mymem  1,26s user 88,62s system 1% cpu 1:31,92 total

$ time ls -1f test/ | wc -l
1179254

real    0m4.085s 
user    0m1.440s 
sys     0m0.488s 


$ time ls -1f test/ | wc -l
1179254

real    0m1.189s 
user    0m1.064s 
sys     0m0.288s 


$ time rm -rf test/

real    8m9.894s
user    0m2.780s
sys     1m53.532s   -- почти твои 1:31 (остальное 8:10-1:53-0:03 -- iowait)


$ lscpu
Model name: AMD Athlon(tm) 64 X2 Dual Core Processor 4200+

$ lspci | grep storage
04:06.0 SCSI storage controller: Adaptec AHA-2940U2/U2W

$ sudo dd if=/dev/vg1/fstest of=/dev/null bs=1024k count=2048
2147483648 bytes (2.1 GB) copied, 56.5418 s, 38.0 MB/s

$ time ls -1f testram/ | wc -l
605720

real    0m0.766s
user    0m0.560s
sys     0m0.328s

$ time rm -rf testram/ 

real    0m3.271s
user    0m0.520s
sys     0m2.720s