Ubuntu
linux-raspi package

  1. Bug #1962180
  2. Comment #24

Comment 24 for bug 1962180

Revision history for this message
Juerg Haefliger (juergh) wrote :

I'm not seeing a significant drop in SMB transfer rate between kernels 5.13.0-1015-raspi and 5.13.0-1016-raspi:

+ uname -r
5.13.0-1015-raspi
+ dd of=samba/juergh/foo if=/dev/zero bs=1G count=10
10+0 records in
10+0 records out
10737418240 bytes (11 GB, 10 GiB) copied, 96.5918 s, 111 MB/s
+ dd if=samba/juergh/foo of=/dev/null bs=1G count=10
10+0 records in
10+0 records out
10737418240 bytes (11 GB, 10 GiB) copied, 98.8129 s, 109 MB/s

+ uname -r
5.13.0-1016-raspi
+ dd of=samba/juergh/foo if=/dev/zero bs=1G count=10
10+0 records in
10+0 records out
10737418240 bytes (11 GB, 10 GiB) copied, 95.5841 s, 112 MB/s
+ dd if=samba/juergh/foo of=/dev/null bs=1G count=10
10+0 records in
10+0 records out
10737418240 bytes (11 GB, 10 GiB) copied, 99.4568 s, 108 MB/s

This is pretty much link saturation. Maybe your case is related to disk IO.