> Да он так шутил, судя по восклицательному знаку. В любом случае отказ
> в обслуживании, атака актуальна. За 10 лет немножко мусора замели под
> ковёр.Хрен знает, либо за 10 лет собачка выросла, либо и 10 лет назад у Эдика что-то уже было не так.
Устал миллиона ждать.
time for i in $(seq -w 1000000); do echo $i; dd if=/dev/zero of=/mnt/0/file_$i bs=2048 count=1; done
1+0 records in
1+0 records out
2048 bytes (2.0 kB, 2.0 KiB) copied, 5.2216e-05 s, 39.2 MB/s
0120843
^C
real 9m46.264s
user 1m55.044s
sys 7m56.524s
[Thu May 27 12:50:34 2021] BTRFS: device fsid e18f33c8-2cce-41a6-bb2b-097795223b53 devid 1 transid 5 /dev/loop0 scanned by systemd-udevd (817670)
[Thu May 27 12:50:34 2021] BTRFS info (device loop0): setting incompat feature flag for COMPRESS_LZO (0x8)
[Thu May 27 12:50:34 2021] BTRFS info (device loop0): use lzo compression, level 0
[Thu May 27 12:50:34 2021] BTRFS info (device loop0): disk space caching is enabled
[Thu May 27 12:50:34 2021] BTRFS info (device loop0): has skinny extents
[Thu May 27 12:50:34 2021] BTRFS info (device loop0): flagging fs with big metadata feature
[Thu May 27 12:50:34 2021] BTRFS info (device loop0): enabling ssd optimizations
[Thu May 27 12:50:34 2021] BTRFS info (device loop0): checking UUID tree
Every 1.0s: df /mnt/0/; echo; btrfs b stat /mnt/0/; btrfs sc stat /mnt/0/; btrfs fi sh /mnt/0/ | grep Label; btrfs fi df /mnt/0/; btrfs fi us -g -T /mnt/0/; btrfs dev us /mnt/0/ | grep .; find /mnt/0/ | wc -l; du -sh /mnt/0/ BxM1: Thu May 27 13:01:11 2021
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/loop0 1048576 122368 696896 15% /mnt/0
No balance found on '/mnt/0/'
UUID: e18f33c8-2cce-41a6-bb2b-097795223b53
no stats available
Total to scrub: 116.25MiB
Rate: 0.00B/s
Error summary: no errors found
Label: none uuid: e18f33c8-2cce-41a6-bb2b-097795223b53
Data, single: total=8.00MiB, used=64.00KiB
System, DUP: total=8.00MiB, used=16.00KiB
Metadata, DUP: total=163.19MiB, used=58.08MiB
GlobalReserve, single: total=3.25MiB, used=0.00B
Overall:
Device size: 1.00GiB
Device allocated: 0.34GiB
Device unallocated: 0.66GiB
Device missing: 0.00GiB
Used: 0.11GiB
Free (estimated): 0.67GiB (min: 0.34GiB)
Free (statfs, df): 0.66GiB
Data ratio: 1.00
Metadata ratio: 2.00
Global reserve: 0.00GiB (used: 0.00GiB)
Multiple profiles: no
Data Metadata System
Id Path single DUP DUP Unallocated
-- ---------- ------- -------- ------- -----------
1 /dev/loop0 0.01GiB 0.32GiB 0.02GiB 0.66GiB
-- ---------- ------- -------- ------- -----------
Total 0.01GiB 0.16GiB 0.01GiB 0.66GiB
Used 0.00GiB 0.06GiB 0.00GiB
/dev/loop0, ID: 1
Device size: 1.00GiB
Device slack: 0.00B
Data,single: 8.00MiB
Metadata,DUP: 326.38MiB
System,DUP: 16.00MiB
Unallocated: 673.62MiB
116460
456M /mnt/0/
