Displaying 20 results from an estimated 5000 matches similar to: "New Version of HPN-SSH Patch"
2006 May 19
1
New HPN Patch Released
The HPN12 patch available from
http://www.psc.edu/networking/projects/hpn-ssh addresses performance
issues with bulk data transfer over high bandwidth delay paths. By
adjusting internal flow control buffers to better fit the outstanding
data capacity of the path significant improvements in bulk data
throughput performance are achieved.
In other words, transfers over the internet are a lot
2006 Feb 01
0
HPN patch for OpenSSH 4.3 released
http://www.psc.edu/networking/projects/hpn-ssh
There have been some changes to the command line switches which are
detailed on the website. This is more of a stop gap release than
anything else. This is still in the HPN-11 cycle of patches. We hope to
have an update to HPN-12 out sometime in March (when I can get some
freetime). This will conform more closely to the OpenSSH nomenclature
and
2008 Feb 07
0
HPN-SSH: HPN13v1 Released
Ben Bennett and I (both researchers at the Pittsburgh Supercomputing
Center) have released the HPN13v1 patch set for OpenSSH 4.7p1. Primarily
this release incorporates the previously announced multi-threaded
AES-CTR mode cipher which will allow users to make better use of
multi-core environments. In our test environments we've seen upwards of
a 100% improvement in throughput performance
2013 Aug 14
0
HPN-SSH for OpenSSH 6.2
Howdy,
It's been a while since I've made an announcement here but I wanted to
mention that we've just released a set of HPN-SSH patches for
OpenSSH6.2. The release marks the first time I've had the resources/help
to actually do anything more than just forward port the patches in quite
a while.
http://www.psc.edu/index.php/hpn-ssh
Items of note:
1) The multithreaded AES-CTR
2008 Apr 01
0
HPN-SSH for OpenSSH 4.9 Available
HPN-SSH is a set of high performance patches which add dynamic window
sizing, none cipher switching, enhanced server logging, and a
multi-threaded cipher implementation to OpenSSH. We've just updated the
patches to the OpenSSH 4.9 release and made them available from
http://www.psc.edu/networking/projects/hpn-ssh/
Comments, questions, and criticisms are always welcome.
Thanks for your
2007 Mar 12
0
HPN patch now available for OpenSSH 4.6
The HPN patch set has been updated to work with OpenSSH4.6. This patch
can help improve performance of bulk data transfers when using SSH, SCP,
or SFTP. Please see http://www.psc.edu/networking/projects/hpn-ssh
for more information.
The patch is available from the above address or directly with
http://www.psc.edu/networking/projects/hpn-ssh/openssh-4.6p1-hpn12v16.diff.gz
If you have any
2005 Sep 08
1
HPN Patch for OpenSSH 4.2p1 Available
Howdy,
As a note, we now have HPN patch for OpenSSH 4.2 at
http://www.psc.edu/networking/projects/hpn-ssh/
Its still part of the last set of patches (HPN11) so there aren't any
additional changes in the code. It patches, configures, compiles, and
passes make tests without a problem. I've not done extensive testing for
this version of openssh but I don't foresee any problems.
I
2006 Sep 29
0
HPN-SSH for OpenSSH 4.4p1 Available
This is a preliminary release and as such should be used at your own
risk. In my testing the application builds under OS X and Linux, passes
the regression tests, and file transfer tests on our test connections
exhibited a 1600% increase in performance
(1.4MB/s versus 20.9MB/s 46ms RTT).
This patch (hpn12v10) is available from
2005 Jun 17
3
New Set of High Performance Networking Patches Available
http://www.psc.edu/networking/projects/hpn-ssh/
Mike Stevens and I just released a new set of high performance
networking patches for OpenSSH 3.9p1, 4.0p1, and 4.1p1. These patches
will provide the same set of functionality across all 3 revisions. New
functionality includes
1) HPN performance even without both sides of the connection being HPN
enabled. As long as the bulk data flow is in the
2008 Jan 29
0
Available: Multi-threaded AES-CTR Cipher
On multiple core systems OpenSSH is limited to using a single core for
all operations. On these systems this can result in a transfer being
processor bound even though additional CPU resources exist. In order to
open up this bottleneck we've developed a multi-threaded version of
the AES-CTR cipher. Unlike CBC mode, since there is no dependency
between cipher blocks in CTR mode we
2013 Jan 02
1
ssh / scp slow on 10GBE
Hello list,
right now SSH Tunnel / scp is reaches just around 76Mb/s on my E5 Xeon
using AES-NI but openssl reaches around 600-700Mb/s using 128aes-cbc cipher.
As far as i understand http://www.psc.edu/index.php/hpn-ssh this is due
to very small buffers in ssh / scp.
Is there any work on this? Like autotuning the buffer size? Are there
plans to integrate the hpn patches?
Greets,
Stefan
2005 Nov 01
2
request: add TCP buffer options to rsync CLI?
Dear rsync folks,
I'd like to request/suggest that cli options to set TCP send/receive buffers
be added to rsync client-side.
Summary:
I'm aware that a daemon's config-file can set socket options for
the server side
(e.g. SO_SNDBUF, SO_RCVBUF). That is useful.
But when trying to get high-throughput rsync over
long paths (i.e. large bandwidth*delay product), since
2009 Feb 17
1
Support for merging LPK and hpn-ssh into mainline openssh?
Hello
Are there plans to merge the hpn-ssh
(http://www.psc.edu/networking/projects/hpn-ssh/) and the LPK
(http://code.google.com/p/openssh-lpk/) into the mainline openssh.
Adding lpk has been logged as a bug in bugzilla as
They are two patches that I always apply as the performance boost from
hpn-ssh is substantial to say the least, and centralisation of the
authorized_keys into a LDAP server
2006 Mar 25
1
High Performance SSH/SCP - HPN-SSH when?
Hi,
http://www.psc.edu/networking/projects/hpn-ssh/
Clearly, the HPN patches significantly boost throughput performance.
This enhancement is entirely from tuning the SSH buffer sizes.
Alex Tavcar
2005 Mar 25
1
New HPN patch released for 3.9
We've released a new HPN (High Performance Network) patch for OpenSSH
3.9p1. We've made two major changes - first off we backed out of all
the modifications we made to buffer.c. Turns out that it just wasn't
necessary once we fixed a nagging bug in channels.c. I also made a
minor change to the buffer sizes in the source and sink functions in
scp.c Increasing the size of both
2007 Nov 09
1
HPN SSH
Hello,
I know that this has been asked before, just wanted to mention that I,
too, would like to see the HPN SSH functionality incorporated in the
standard OpenSSH.
Would there be technical disadvantages integrating the changes?
I know we are all pretty busy, but I would certainly spend time to help,
e.g. with testing, documentation, etc.
Cheers
--pwo
--
Peter W. Osel - http://pwo.de/ - pwo
2007 Nov 15
0
Extended Server Logging Patch
On the request of a coworker looking for more information about our SSH
users I developed a patch that provides extended logging capability for
SSHD. Its been written with an eye towards machine parsing. This patch
will write the following information to the standard system log:
remote ip, remote port, & remote user name
protocol number and client version information
Encryption method, MAC
2006 Apr 26
1
Prelim results: hpnssh v ssh in local area networks
The results, for anyone interested, can be found here
http://www.psc.edu/networking/projects/hpn-ssh/results.html
Long story short, there doesn't seem to be any notable difference
between the two anymore. I still have a few more test combinations to
run (<.5ms rtts and against cygwin) so the conclusions might change but,
at this point, I'm no longer seeing any sort of performance
2023 Mar 29
1
[EXTERNAL] Re: ChaCha20 Rekey Frequency
Ah, with an internal block size [Is that what one calls it?] of 64 bytes.
From: Damien Miller <djm at mindrot.org>
Sent: Wednesday, March 29, 2023 3:08 PM
To: Robinson, Herbie <Herbie.Robinson at stratus.com>
Cc: Chris Rapier <rapier at psc.edu>; Christian Weisgerber <naddy at mips.inka.de>; openssh-unix-dev at mindrot.org
Subject: RE: [EXTERNAL] Re: ChaCha20 Rekey
2006 Nov 14
0
HPN Patch for 4.5p1 Released
Just so you know the HPN-SSH patch for 4.5p1 has been released at
http://www.psc.edu/networking/projects/hpn-ssh
The 4.4p1 patch also works against 4.5p1. The 4.5p1 patch just addresses
some line moves for a cleaner patch.