@Guest: Thanks for the idea, I'll consider it.
- martin
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Yes. 100% of my usage is SCP protocol only.
Are you really always using the SCP protocol only?
Over the last few years I've used WinSCP on multiple different computers and different networks and disabling this option ALWAYS improves my SCP transfer speeds by more than a factor of 10. Today I went from 2KB/s to 60MB/s.
.AddRawSettings("Cipher", "3des,blowfish,aes,chacha20,WARN,arcfour,des")
.AddRawSettings("Cipher", "blowfish,aes,3des,chacha20,WARN,arcfour,des")
I would recommend disabling this option by default and showing an alert whenever the user is trying to connect with this option enabled (and a checkbox to disable that alert in the future).
ipv6.enable=1 dwc_otg.lpm_enable=0 console=tty1 root=PARTUUID=4deb7a84-02 rootfstype=ext4 elevator=cfq fsck.repair=yes rootwait
<knip>
# uncomment to overclock the arm. 1200 MHz is the default.
arm_freq=1100
arm_freq_min=800
core_freq=400
sdram_freq=400
over_voltage=0
temp_limit=70
# Uncomment some or all of these to enable the optional hardware interfaces
dtparam=i2c_arm=off
dtparam=i2s=off
dtparam=spi=off
# Uncomment this to enable the lirc-rpi module
#dtoverlay=lirc-rpi
#Bluetooth off
dtoverlay=pi3-disable-bt
# Additional overlays and parameters are documented /boot/overlays/README
# Enable audio (loads snd_bcm2835)
dtparam=audio=off
start_x=0
gpu_mem=16
enable_uart=0
max_usb_current=1
hdparm -Tt /dev/sd(x)
I am using SFTP and the very latest WinSCP version
Sincerely,
When transfering a big systembackup file towards the NAS I noticed that the transfer rate was only about 640 gbit. I did at expect something like three to four times that.
So I looked at the cpu load of the nas (moderate intel Pentium g5460, 16GB) which was about 14% ….. and did have a look at the much more powerfull cpu here on my pc (AMD2700X 32GB). And up to my surprise my PC seems to be the limmiting factor ……
The issue when I do it is that option is greyed out, how do I get passed that part?
I've posted a link at least twice above already.
https://winscp.net/eng/docs/ui_login_connection
where does one find "Connection uncheck Optimize connection buffer size" setting for latest version? there's no connection settings listed on left like in the image?
I appreciate the great product that the developers put out, but it sure seems like maybe this setting should be off by default (since it impacts so many different people).
I have the same problem but can't fix it. Why?
Disable Connection -> Optimize connection buffer size.
i always noticed this with winscp, when i compare downloading something with filezilla or the old flashFXP client, winSCP always seemed slower as if it was capped, so im glad i found this subject here, but when i go into my site manager/advanced, i can see the optimize option but its greyed out and i cant untick it.
i have a passive option with can be ticked/unticked
Equivalent to what?
Is this a GUI only solution? I have a third party software workflow that utilizes WinSCP scripting under the hood. Would there be an equivalent setting in some config file somewhere? Thank you!
I changed most relevant settings but the one that actually worked was to disable Connection -> Optimize connection buffer size.
Should this be noted on the FAQ entry for this?