search for: rtts

Hi, thanks for previous help. I have some question about Lustre RPC and the sequence of events that occur during large concurrent write() involving many processes and large data size per process. I understand there is a mechanism of flow control by credits, but I''m a little unclear on how it works in general after reading the "networking & io protocol" white paper. Is

Hello all, I would like to connect two IPv4-only networks through global IPv6-only network with tinc. Could anyone tell me how to configure tinc.conf and the other config files? Thanks in advance, Ichiro Tinc: Discussion list about the tinc VPN daemon Archive: http://mail.nl.linux.org/lists/ Tinc site: http://tinc.nl.linux.org/

...rnal time source, first stratum 2/3 sources, then stratum 1 sources in an attempt to cure this problem. In a clustered server environment, _always_ run a local physical box/router ntpd server (preferably two) that queries a set of external sources, and services your internal machine queries. With RTTs all on your LAN, and using the same internal time sources for every query, this clock drift issue should be eliminated. Obviously, when you first set this up, stop ntpd and run ntpdate to get an initial time sync for each cluster host. If after setting this up, and we're dealing with bare met...

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 hit (as a measure of throughput) for hpnssh in local area networks. Raw data, test script, and stats script available for those interested. thx chris

On Wed, Apr 27, 2016 at 06:23:38AM -0400, Gene Cumm via Syslinux wrote: > On Thu, Apr 21, 2016 at 10:30 PM, Ady via Syslinux <syslinux at zytor.com> wrote: > > Would someone please be so kind to explain / describe the PXERETRY > > directive? > > $ git grep -ni pxeretry -i ignore case ("thanks" said the person who exact case matching search ) >

Hello, I have an Asterisk with one local Cisco ATA and one remote Cisco ATA connected to the Asterisk, the remore connection is a satellite link with an 900ms delay. I can make calls from the remote site to the local site, but when try to call from local to remote it doesn't work. The Asterisk timesout, it sais no one answered and can?t establish the connection. Can anybody help me with

As of late our four node dovecot 1.2.13 cluster has been experiencing a massive number of these dotlock errors: Created dotlock file's timestamp is different than current time (1295480202 vs 1295479784): /mail/user/Maildir/dovecot-uidlist These dotlock errors correspond with very high load averages, and eventually we have to turn off all but one server to stop them from occurring. We first

I feel completely stupid for asking this question, but I have an essential problem of getting the syntax right for synchronizing multiple files. I am trying to use rsync to synchronize files generated in one directory with our public directory our web server. We have a number of files with the extension html so I have tried the following command line: rsync *.html

Hi, I have been doing some tests using hping2 and TCP SYN pings targeting local and remote hosts from two FreeBSD 4.7-RELEASE-p10 and one Linux 2.4.18 host. The three machines have the same hardware configuration and have been running for 6 months now. The average load isnt too high (usually 0.01 to 0.15) on the FreeBSD machines. Here is the output from hping2 (excuse me the line wrap),

(I know that what I''m wanting to do can be done, but for some reason I can not get it to work for the life of me. I think I have been staring at it too long and too closely.) I have two different internet connections from two cooperating ISPs. I also have a small 8 block of IPs that are globally routable that both ISPs will route to me via my world facing globally routable IPs that

FYI, I posted a blog a few days ago about a DTrace provider for NFS that is currently in development: http://blogs.sun.com/roller/page/samf?entry=a_dtrace_provider_for_nfs Let''s discuss any questions, comments, etc. here. I also advertised this on nfs-discuss at opensolaris.org. Naturally, I would expect the discussion here to be more on the specifics of DTrace, and the

Does anyone have any pointers on how other people have implemented tcp window adjustment to do bandwidth shaping? Granted the basic idea is to set the window size to be RTT * bandwidth, but a quick squiz at google turns up mostly papers on how to implement this at the sender end with a view to some new magic TCP implementation. I''m really interested in notes on how to implement at

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello Everyone, On November 30th, FreeBSD 6.4 and FreeBSD 8.0 will have reached their End of Life and will no longer be supported by the FreeBSD Security Team. Since FreeBSD 6.4 is the last remaining supported release from the FreeBSD 6.x stable branch, support for the FreeBSD 6.x stable branch will also cease at the same point. Users of either of

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hello Everyone, On November 30th, FreeBSD 6.4 and FreeBSD 8.0 will have reached their End of Life and will no longer be supported by the FreeBSD Security Team. Since FreeBSD 6.4 is the last remaining supported release from the FreeBSD 6.x stable branch, support for the FreeBSD 6.x stable branch will also cease at the same point. Users of either of