R5C network performance ~10MB/sec
Posted: Fri Oct 11, 2024 5:15 pm
When I test the R5C local disk write speed I see ~50MB/s bandwidth but when I try to rsync/scp to the same disk I see ~10MB/s. Does anybody have a remedy? The network speed on 1Gbit/s Ethernet should be above 100MB/s and this is the speed I see with other devices on my network. I will describe the test first and then the details of the environment and disk setup:
1. Tests:
I have two V30 or better SD cards mounted with ext4 file systems on /share and /share1. First test the speed of write with dd:
Now I copy the generated file to the other SD card mounted on /share1:
When trying to rsync from locally Ethernet connected PC I see ~10MB/sec speed:
2. Configuration - the SD filesystems and mounts configuration:
1. Tests:
I have two V30 or better SD cards mounted with ext4 file systems on /share and /share1. First test the speed of write with dd:
Code: Select all
root@FriendlyWrt:/share# uname -a
Linux FriendlyWrt 6.1.57 #1 SMP Mon Aug 19 19:56:08 CST 2024 aarch64 GNU/Linux
root@FriendlyWrt:~# cd /share
root@FriendlyWrt:/share# ls
lost+found
root@FriendlyWrt:/share# time dd if=/dev/random of=test1 bs=1M count=1000
1000+0 records in
1000+0 records out
1048576000 bytes (1.0 GB, 1000 MiB) copied, 34.4614 s, 30.4 MB/s
real 0m34.466s
user 0m0.021s
sys 0m10.723sNow I copy the generated file to the other SD card mounted on /share1:
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root@FriendlyWrt:/share# rsync -avx --progress test1 /share1
sending incremental file list
test1
1,048,576,000 100% 78.61MB/s 0:00:12 (xfr#1, to-chk=0/1)
sent 1,048,832,094 bytes received 35 bytes 48,782,889.72 bytes/sec
total size is 1,048,576,000 speedup is 1.00
When trying to rsync from locally Ethernet connected PC I see ~10MB/sec speed:
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pzi@pzi-s3:/cygdrive/c/users/pzi/downloads$ rsync -avx --progress ubuntu-24.04-live-server-amd64.iso root@npi:/share
Warning: Permanently added 'npi' (ED25519) to the list of known hosts.
sending incremental file list
ubuntu-24.04-live-server-amd64.iso
123,633,664 4% 11.28MB/s 0:03:47
rsync error: unexplained error (code 255) at rsync.c(713) [sender=3.3.0]
2. Configuration - the SD filesystems and mounts configuration:
Code: Select all
opkg update
opkg install block-mount kmod-fs-ext4 e2fsprogs parted kmod-usb-storage
opkg install mount-utils usbutils kmod-usb-storage-uas
lsblk
parted -s /dev/mmcblk0 -- print
parted -s /dev/mmcblk0 -- mklabel gpt
parted -s /dev/mmcblk0 -- print
parted -s /dev/mmcblk0 -- mkpart primary 0% 100%
parted -s /dev/mmcblk0 -- print
lsblk
mkfs.ext4 /dev/mmcblk0p1
uci -q delete fstab.sd
uci set fstab.sd=mount
uci set fstab.sd.device=/dev/mmcblk0p1
uci set fstab.sd.target=/share
uci set fstab.sd.enabled=1
uci changes
uci commit fstab
uci show fstab