Re: Linux Services

On 2006-05-23, Michael Heiming <michael+USENET@xxxxxxxxxxxxxx> wrote:
In comp.os.linux.misc Robert M. Riches Jr. <spamtrap42@xxxxxxxxxxx>:

One disadvantage of scp is the CPU overhead of the
encryption. When copying 2.6GB one way and 1.4GB the other
way over 100Mb ethernet, the CPU is buried so badly handling
the encryption that both systems are useless for anything
else. Without the encryption CPU load, you can actually do
something on the systems while transferring.

You could just use another cypher or even none to speed up
operations, and lower CPU usage, authentication will still be
encrypted. "blowfish" usually doesn't use that much CPU.

Thanks for the suggestion. I'll have to give it a try.

Robert Riches
(Yes, that is one of my email addresses.)

Relevant Pages

  • RE: IBM announces Encrypting tape drives
    ... I prefer CPU-based compression/encryption mostly ... I must admit that I am prejudiced towards CPU machine instructions. ... I would much rather have compression and encryption available on ... "Tape only" encryption solution greatly limits my choices. ...
  • Re: A question on law and regarding accountability
    ... encryption software is not covered under the same laws it should be ... export laws. ... books, pamphlets, and miscellaneous publications including bound ... Still can run dang fast considering modern cpu power. ...
  • Re: Connect:Direct (NDM) CPU Usage
    ... An early foray into file encryption showed this behavior, ... Subject: Connect:Direct CPU Usage ... If you wish to communicate securely with Commerce Bank and its ... If you have received this electronic mail message in error, ...
  • Re: [dm-devel] [PATCH] DM-CRYPT: Scale to multiple CPUs
    ... Currently dm-crypt does all encryption work per dmcrypt mapping in a ... thread cannot keep up with the encryption and encrypted IO performance ... This is true only if encryption run on the CPU synchronously. ... crypto which run in parallel in crypto API layer (and have limited ...
  • Re: MACs need to pay attention to small-packet performance
    ... > you're reading 1 gigabit per second continuously from your laptop disk? ... This means that the amount of cpu dedicated ... Otherwise, encryption will slow down things, and users will ... symmectric encryption algorithms should be very fast because ...