write speed

  1. weldlive

    UFS Slow real disk write results

    On the same machine (Lenovo ThinkCentre M600 Tiny Thin Client N3000 terminal), installing pure FreeBSD 14.1 (UFS fs) and Debian (EXT3 fs) distributions, the disk performance results are dramatically different. Result from dmesg (FreeBSD): ada0 at ahcich1 bus 0 scbus1 target 0 lun 0 ada0...
  2. S

    USB3 PCIe Cards with FreeBSD low speed

    Hello, we wanted to connect a USB3 PCI Express card to our aging HP Proliant DL380 Gen8 (which has PCIe 3.0 slots with x16, x8 and a PCI-e 2.0 slot x4). The USB3 cards are working but at a very low speed. When I test the speed by connecting a USB3 HDD the speed is about 5 to 7 MB/s with...
  3. C

    bhyve bhyve I/O performance

    I'm running bhyve vms that show very bad I/O performance and I'm wondering what factors may be causing this? A couple details: I'm testing with a simple dd if=/dev/random of=test bs=1M status=progress and yes, that's not very scientific. Since I'm seeing many factors worse I/O perf than...
  4. fr33bsd

    ZFS SLOG device with no performance effect?

    Greetings, I have a sort of backup server for snapshots. This server is only dedicated to receive snapshots. There is no NFS/FTP/.... . During a transfer of a snapshot using netcat I added a slog NVMe ssd to the backup pool. I was hoping to see even a tiny speed boost, but there was none. I...
  5. Isaac Monteiro

    USB I/O very slow

    Hi, I downloaded an 2,7 GB ISO image and copied to a pen drive formatted as ext2. The copying progress started with a write speed of 3 MB/s and went slower and slower and ended with a write speed of 627 KB/s. The copy process took me 47 minutes and I decided to test the write speed of Debian...
Back
Top