This is ridiculous, on the client side, with openssh-6.0 or newer (tested 6.1 as well) the scp/sftp speed is extreme low. With 6.0/6.1 I am getting 500-800 kBps. With 5.9 I am getting about 31 MBps With or without hpn on both ends, tested pretty much each scenario, with any criper, even with 'none'. Both ends have a lot free cpu time, so there is no issue in lacking of processing power. I can get 'full speed' with openssh-6.0 on the server-side and 5.9 on the client-side. So the issue is on the client-side. fwiw both are clean and fresh gentoo amd64 installs. Reproducible: Always
please post `emerge --info <pkg>` with every bug report you file as the documentation states in multiple places
Sorry about that, heres emerge info: Portage 2.2.0_alpha131 (default/linux/amd64/10.0, gcc-4.6.3, glibc-2.15-r2, 3.5.3-frontier x86_64) ================================================================= System Settings ================================================================= System uname: Linux-3.5.3-frontier-x86_64-Intel-R-_Core-TM-_i5_CPU_M_480_@_2.67GHz-with-gentoo-2.2 Timestamp of tree: Sat, 22 Sep 2012 11:00:01 +0000 ccache version 3.1.8 [enabled] app-shells/bash: 4.2_p37 dev-java/java-config: 2.1.12 dev-lang/python: 2.7.3-r2, 3.2.3-r1 dev-util/ccache: 3.1.8 dev-util/cmake: 2.8.9 sys-apps/baselayout: 2.2 sys-apps/openrc: 0.10.5 sys-apps/sandbox: 2.6 sys-devel/autoconf: 2.13, 2.69 sys-devel/automake: 1.11.6, 1.12.4 sys-devel/binutils: 2.22.90 sys-devel/gcc: 4.4.7, 4.6.3 sys-devel/gcc-config: 1.7.3 sys-devel/libtool: 2.4.2 sys-devel/make: 3.82-r3 sys-kernel/linux-headers: 3.5 (virtual/os-headers) sys-libs/glibc: 2.15-r2 Repositories: gentoo lcd-filtering foo-overlay ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="*" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O2 -pipe -march=native -mtune=generic -fno-var-tracking" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo" CXXFLAGS="-O2 -pipe -march=native -mtune=generic -fno-var-tracking" DISTDIR="/var/portage/distfiles" EMERGE_DEFAULT_OPTS="--with-bdeps y --binpkg-respect-use y" FCFLAGS="-O2 -pipe" FEATURES="assume-digests binpkg-logs ccache distlocks ebuild-locks fixlafiles news parallel-fetch preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch" FFLAGS="-O2 -pipe" GENTOO_MIRRORS="http://distfiles.gentoo.org" LC_ALL="en_US.UTF-8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" LINGUAS="en pl" MAKEOPTS="--quiet -j4" PKGDIR="/var/portage/packages" PORTAGE_COMPRESS="bzip2" PORTAGE_COMPRESS_FLAGS="-9" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/var/portage/tree" PORTDIR_OVERLAY="/var/lib/layman/lcd-filtering /home/piotr/src/foo-overlay" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="X acl amd64 berkdb bzip2 cli cracklib crypt cups cxx dbus dri fontconfig fortran gdbm gif gpm iconv ipv6 jpeg lcdfilter logrotate mmx modules mudflap multilib ncurses nls nptl opengl openmp pam pcre png pppd readline session sse sse2 ssl tcpd threads truetype unicode vim-syntax xft zlib zsh-completion" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mmap_emul mulaw multi null plug rate route share shm softvol" APACHE2_MODULES="actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="kexi words flow plan sheets stage tables krita karbon braindump" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ubx" INPUT_DEVICES="synaptics mouse keyboard" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="en pl" PHP_TARGETS="php5-3" PYTHON_TARGETS="python3_2 python2_7" QEMU_SOFTMMU_TARGETS="x86_64 i386" RUBY_TARGETS="ruby18" USERLAND="GNU" VIDEO_CARDS="nvidia" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account" Unset: CPPFLAGS, CTARGET, INSTALL_MASK, LANG, PORTAGE_BUNZIP2_COMMAND, PORTAGE_RSYNC_EXTRA_OPTS, USE_PYTHON ================================================================= Package Settings ================================================================= net-misc/openssh-6.1_p1 was built with the following: USE="X (multilib) pam tcpd -X509 -hpn -kerberos -ldap -libedit (-selinux) -skey -static" And back to the case, I did some research and what I found is: it does looks like that on 'weak' links the new ssh is by far slower than 5.9. I did replaced patchcord between the remote box and switch and now the transfer rate is much better with new openssh 6.1: 22-26 MBps 5.9: 29-32 MBps, never less. So if the quality of link may be issue I did test with wireless, and the results are really similar 6.1: 2.2-3.6 MBps 5.9: 4.2-5 MBps So I tried dropbear's scp, compiled with SCPPROGRESS=1 as default one don't have such, and with it I have 2.6-2.7 MBps, I can stop it, start the scp from 5.9 and get over 4.7 MBps, swaped multiple times. My conclusion is: various ssh/scp implamentations/versions offer far different speed and the quality of link have huge impact on the overall performance. When the network enviroment is good there is barly noticable difference but with flawed network enviroment, like wireless is good example, the new openssh is by far slower. What do you think about it? And if possible, would be really great if you could do quick test of that on your side too.
