Hi! In SLES15 SP6 (systemd-254.24-150600.4.28.1.x86_64) I noticed that collecting logs took quite long, so I checked. # time journalctl |wc -l 2705448
real 2m23.008s user 1m25.666s sys 0m57.389s The journal is persistent and it's located on a BtrFS subvolume using a device that is provided by VMware from a high-performance SSD SAN storage: # lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS sda 8:0 0 40G 0 disk ├─sda1 8:1 0 512M 0 part /boot/efi ├─sda2 8:2 0 21G 0 part /root │ /srv │ /usr/local │ /var │ /opt │ /tmp │ /boot/grub2/x86_64-efi │ /boot/grub2/i386-pc │ /.snapshots │ / ├─sda3 8:3 0 10.7G 0 part /home └─sda4 8:4 0 7.8G 0 part [SWAP] # hdparm -t /dev/sda2 /dev/sda2: Timing buffered disk reads: 1680 MB in 3.00 seconds = 559.48 MB/sec # hdparm -T /dev/sda2 /dev/sda2: Timing cached reads: 18612 MB in 2.00 seconds = 9322.49 MB/sec During boot this statistics had been logged: System Journal (/var/log/journal/41d6ce7a6cfc467297b777b8d87f071d) is 2.0G, max 2.1G, 103.1M free. Obvious question: Why is it so slow? Kind regards, Ulrich Windl
