Download speed slower than upload speed
Posted: 14 Jan 2013 11:00
Hi All
I'm using Nas4free(9.1.0.1.573) on ECS 915P-A (V3.0) with NIC RTL8110S.
When i copy large file from my PC to the NAS i reach a speed of 45MB/s. When I copy a large file from the NAS to PC i just reach a speed of 4MB/s!
I down samba and ran iperf
Why are download speed is much slower than upload speed?
I'm using Nas4free(9.1.0.1.573) on ECS 915P-A (V3.0) with NIC RTL8110S.
When i copy large file from my PC to the NAS i reach a speed of 45MB/s. When I copy a large file from the NAS to PC i just reach a speed of 4MB/s!
I down samba and ran iperf
Code: Select all
Upload to NAS
iperf.exe -c 192.168.1.77 -P 1 -i 1 -p 5001 -f M -t 10 -w 64K
[ ID] Interval Transfer Bandwidth
[132] 0.0- 1.0 sec 74.6 MBytes 74.6 MBytes/sec
[132] 1.0- 2.0 sec 77.0 MBytes 77.0 MBytes/sec
[132] 2.0- 3.0 sec 76.1 MBytes 76.1 MBytes/sec
[132] 3.0- 4.0 sec 75.5 MBytes 75.5 MBytes/sec
[132] 4.0- 5.0 sec 52.1 MBytes 52.1 MBytes/sec
[132] 5.0- 6.0 sec 76.5 MBytes 76.5 MBytes/sec
[132] 6.0- 7.0 sec 76.3 MBytes 76.3 MBytes/sec
[132] 7.0- 8.0 sec 76.0 MBytes 76.0 MBytes/sec
[132] 8.0- 9.0 sec 76.3 MBytes 76.3 MBytes/sec
[132] 9.0-10.0 sec 77.0 MBytes 77.0 MBytes/sec
[132] 0.0-10.0 sec 738 MBytes 73.6 MBytes/sec
Code: Select all
Download from NAS
$ iperf -c 192.168.1.100 -P 1 -i 1 -p 5001 -f M -t 10 -w 64K
[ ID] Interval Transfer Bandwidth
[ 3] 0.0- 1.0 sec 6.62 MBytes 6.62 MBytes/sec
[ 3] 1.0- 2.0 sec 5.50 MBytes 5.50 MBytes/sec
[ 3] 2.0- 3.0 sec 4.25 MBytes 4.25 MBytes/sec
[ 3] 3.0- 4.0 sec 4.62 MBytes 4.62 MBytes/sec
[ 3] 4.0- 5.0 sec 5.00 MBytes 5.00 MBytes/sec
[ 3] 5.0- 6.0 sec 11.0 MBytes 11.0 MBytes/sec
[ 3] 6.0- 7.0 sec 5.62 MBytes 5.62 MBytes/sec
[ 3] 7.0- 8.0 sec 6.50 MBytes 6.50 MBytes/sec
[ 3] 8.0- 9.0 sec 4.50 MBytes 4.50 MBytes/sec
[ 3] 9.0-10.0 sec 6.00 MBytes 6.00 MBytes/sec
[ 3] 0.0-10.2 sec 59.8 MBytes 5.86 MBytes/sec