Displaying 20 results from an estimated 92 matches for "tcp_quickack".
2020 Nov 04
2
parallel PSOCK connection latency is greater on Linux?
...not touch (NA), enable (TRUE) or disable (FALSE) TCP_NODELAY. I wonder if there is any other way we could infer the intention of the user to try to choose the right approach...
Cheers,
Simon
> On Nov 3, 2020, at 02:28, Jeff <jeff at vtkellers.com> wrote:
>
> Could TCP_NODELAY and TCP_QUICKACK be exposed to the R user so that they might determine what is best for their potentially latency- or throughput-sensitive application?
>
> Best,
> Jeff
>
> On Mon, Nov 2, 2020 at 14:05, I?aki Ucar <iucar at fedoraproject.org> wrote:
>> On Mon, 2 Nov 2020 at 02:22, Simon...
2020 Nov 02
3
parallel PSOCK connection latency is greater on Linux?
...org> wrote:
>
> It looks like R sockets on Linux could do with TCP_NODELAY -- without (status quo):
How many network packets are generated with and without it? If there
are many small writes and thus setting TCP_NODELAY causes many small
packets to be sent, it might make more sense to set TCP_QUICKACK
instead.
I?aki
> Unit: microseconds
> expr min lq mean median uq max
> clusterEvalQ(cl, iris) 1449.997 43991.99 43975.21 43997.1 44001.91 48027.83
> neval
> 1000
>
> exactly the same machine + R but with TCP_NODELAY enabled in...
2020 Nov 04
0
parallel PSOCK connection latency is greater on Linux?
...ncoming result.
So I'd say Nagle is hardly to blame for this. It would be interesting
to see how many packets are generated with TCP_NODELAY on. If there
are still 6 packets, then we are fine. If we suddenly see a gazillion
packets, then TCP_NODELAY does more harm than good. On the other hand,
TCP_QUICKACK would surely solve the issue without any drawback. As
Nagle himself put it once, "set TCP_QUICKACK. If you find a case where
that makes things worse, let me know."
I?aki
On Wed, 4 Nov 2020 at 04:34, Simon Urbanek <simon.urbanek at r-project.org> wrote:
>
> I'm not sure t...
2016 Apr 01
2
knit and smbclient executed with different users but no error thrown
...CNT = 9
TCP_KEEPIDLE = 7200
TCP_KEEPINTVL = 75
IPTOS_LOWDELAY = 0
IPTOS_THROUGHPUT = 0
SO_REUSEPORT = 0
SO_SNDBUF = 19800
SO_RCVBUF = 87380
SO_SNDLOWAT = 1
SO_RCVLOWAT = 1
SO_SNDTIMEO = 0
SO_RCVTIMEO = 0
TCP_QUICKACK = 1
TCP_DEFER_ACCEPT = 0
session request ok
Doing spnego session setup (blob length=88)
got OID=1.2.840.48018.1.2.2
got OID=1.2.840.113554.1.2.2
got OID=1.2.840.113554.1.2.2.3
got OID=1.3.6.1.4.1.311.2.2.10
got principal=adir$@TEST.LOCAL
cli_session_setup_spnego: using target hostname not...
2020 Nov 02
0
parallel PSOCK connection latency is greater on Linux?
Could TCP_NODELAY and TCP_QUICKACK be exposed to the R user so that
they might determine what is best for their potentially latency- or
throughput-sensitive application?
Best,
Jeff
On Mon, Nov 2, 2020 at 14:05, I?aki Ucar <iucar at fedoraproject.org>
wrote:
> On Mon, 2 Nov 2020 at 02:22, Simon Urbanek
> <simon.u...
2011 Oct 29
0
samba 3.5.6 & win2k8 r2, session request fails
...ELAY = 1
TCP_KEEPCNT = 9
TCP_KEEPIDLE = 7200
TCP_KEEPINTVL = 75
IPTOS_LOWDELAY = 0
IPTOS_THROUGHPUT = 0
SO_SNDBUF = 16384
SO_RCVBUF = 16384
SO_SNDLOWAT = 1
SO_RCVLOWAT = 1
SO_SNDTIMEO = 0
SO_RCVTIMEO = 0
TCP_QUICKACK = 1
[2011/10/29 10:38:02.877122, 6] libsmb/clientgen.c:323(write_socket)
write_socket(10,72)
[2011/10/29 10:38:02.877141, 6] libsmb/clientgen.c:326(write_socket)
write_socket(10,72) wrote 72
[2011/10/29 10:38:02.877151, 5] libsmb/cliconnect.c:1931(cli_session_request)
Sent session request...
2017 Aug 15
2
cannot join windows 7 samba4-ad-dc fresh install, get NT_STATUS_INTERNAL_ERROR
...L = 75
IPTOS_LOWDELAY = 0
IPTOS_THROUGHPUT = 0
SO_REUSEPORT = 0
SO_SNDBUF = 2626560
SO_RCVBUF = 1061808
SO_SNDLOWAT = 1
SO_RCVLOWAT = 1
Could not test socket option SO_SNDTIMEO.
Could not test socket option SO_RCVTIMEO.
TCP_QUICKACK = 1
TCP_DEFER_ACCEPT = 0
session request ok
Doing spnego session setup (blob length=96)
got OID=1.2.840.48018.1.2.2
got OID=1.2.840.113554.1.2.2
got OID=1.3.6.1.4.1.311.2.2.10
got principal=not_defined_in_RFC4178 at please_ignore
cli_session_setup_spnego: using target hostname not SPNEGO p...
2016 Apr 04
0
knit and smbclient executed with different users but no error thrown
...EPINTVL = 75
> IPTOS_LOWDELAY = 0
> IPTOS_THROUGHPUT = 0
> SO_REUSEPORT = 0
> SO_SNDBUF = 19800
> SO_RCVBUF = 87380
> SO_SNDLOWAT = 1
> SO_RCVLOWAT = 1
> SO_SNDTIMEO = 0
> SO_RCVTIMEO = 0
> TCP_QUICKACK = 1
> TCP_DEFER_ACCEPT = 0
> session request ok
> Doing spnego session setup (blob length=88)
> got OID=1.2.840.48018.1.2.2
> got OID=1.2.840.113554.1.2.2
> got OID=1.2.840.113554.1.2.2.3
> got OID=1.3.6.1.4.1.311.2.2.10
> got principal=adir$@TEST.LOCAL
> cli_ses...
2015 May 31
1
unable to join a SAMBA linux box to MSWindows 2012 AD
...t 139
Socket options:
SO_KEEPALIVE = 0
SO_REUSEADDR = 0
SO_BROADCAST = 0
TCP_NODELAY = 1
TCP_KEEPCNT = 9
TCP_KEEPIDLE = 7200
TCP_KEEPINTVL = 75
IPTOS_LOWDELAY = 0
IPTOS_THROUGHPUT = 0
SO_SNDBUF = 16384
SO_RCVBUF = 16384
SO_SNDLOWAT = 1
SO_RCVLOWAT = 1
SO_SNDTIMEO = 0
SO_RCVTIMEO = 0
TCP_QUICKACK = 1
Substituting charset 'UTF-8' for LOCALE
Bind RPC Pipe: host fask-SERVER01 auth_type 0, auth_level 1
rpc_api_pipe: host fask-SERVER01
rpc_read_send: data_to_read: 52
check_bind_response: accepted!
rpc_api_pipe: host fask-SERVER01
rpc_read_send: data_to_read: 32
rpc_api_pipe: host fask-SE...
2012 Jun 27
2
WINS doesn't work on some ip addresses in multihome setup
...Could not test socket option TCP_KEEPINTVL.
IPTOS_LOWDELAY = 0
IPTOS_THROUGHPUT = 0
SO_SNDBUF = 124928
SO_RCVBUF = 124928
SO_SNDLOWAT = 1
SO_RCVLOWAT = 1
SO_SNDTIMEO = 0
SO_RCVTIMEO = 0
Could not test socket option TCP_QUICKACK.
Socket opened.
querying name-of-host on 10.8.0.1
Sending a packet of len 50 to (10.8.0.1) on port 137
Sending a packet of len 50 to (10.8.0.1) on port 137
Sending a packet of len 50 to (10.8.0.1) on port 137
name_query failed to find name name-of-host
----------------------------------- 8< ----...
2016 May 25
2
Regression: The 'net' command is now failing to login (UNKNOWN ENUM VALUE 1003?)
Hello:
Platform: CentOS 6.7 x86-64
$ rpm -qa | grep samba
samba-common-3.6.23-30.el6_7.x86_64
samba4-libs-4.2.10-6.el6_7.x86_64
ie-samba-utils-3.6.13-7.x86_64
samba-winbind-3.6.23-30.el6_7.x86_64
samba-client-3.6.23-30.el6_7.x86_64
samba-winbind-clients-3.6.23-30.el6_7.i686
samba-winbind-clients-3.6.23-30.el6_7.x86_64
Problems began after requiring SMB signing (I forgot the specifics but
it was
2013 Sep 03
2
NT_STATUS_CONNECTION_REFUSED with smbclient and samba 4.0.6
...127.0.0.1 at port 445
Socket options:
SO_KEEPALIVE = 0
SO_REUSEADDR = 0
SO_BROADCAST = 0
TCP_NODELAY = 1
TCP_KEEPCNT = 9
TCP_KEEPIDLE = 7200
TCP_KEEPINTVL = 75
IPTOS_LOWDELAY = 0
IPTOS_THROUGHPUT = 0
SO_SNDBUF = 50748
SO_RCVBUF = 87584
SO_SNDLOWAT = 1
SO_RCVLOWAT = 1
SO_SNDTIMEO = 0
SO_RCVTIMEO = 0
TCP_QUICKACK = 1
TCP_DEFER_ACCEPT = 0
session request ok
session setup failed: NT_STATUS_CONNECTION_REFUSED
Here is the smb.conf file's content
# Global parameters
[global]
workgroup = SIEGE
realm = bceao.int
netbios name = Z00-DC01
server role = active directory domain controller
#dcerpc endpoint server...
2017 Dec 01
3
Intermittent failure of net ads join command with error "The transport connection is now disconnected"
...NT = 9
TCP_KEEPIDLE = 7200
TCP_KEEPINTVL = 75
IPTOS_LOWDELAY = 0
IPTOS_THROUGHPUT = 0
SO_REUSEPORT = 0
SO_SNDBUF = 87040
SO_RCVBUF = 367360
SO_SNDLOWAT = 1
SO_RCVLOWAT = 1
SO_SNDTIMEO = 0
SO_RCVTIMEO = 0
TCP_QUICKACK = 1
TCP_DEFER_ACCEPT = 0
got OID=1.3.6.1.4.1.311.2.2.10
GENSEC backend 'gssapi_spnego' registered
GENSEC backend 'gssapi_krb5' registered
GENSEC backend 'gssapi_krb5_sasl' registered
GENSEC backend 'spnego' registered
GENSEC backend 'schannel' registe...
2015 Sep 02
3
Cannot access the (old) samba server on my router from Linux
...TCP_KEEPIDLE = 7200
TCP_KEEPINTVL = 75
IPTOS_LOWDELAY = 0
IPTOS_THROUGHPUT = 0
SO_REUSEPORT = 0
SO_SNDBUF = 87040
SO_RCVBUF = 372480
SO_SNDLOWAT = 1
SO_RCVLOWAT = 1
SO_SNDTIMEO = 0
SO_RCVTIMEO = 0
TCP_QUICKACK = 1
TCP_DEFER_ACCEPT = 0
session request ok
cli_init_creds: user luca domain WORKGROUP
Domain=[WORKGROUP] OS=[Unix] Server=[Samba 1.9.16p10]
session setup ok
tree connect failed: NT_STATUS_BAD_NETWORK_NAME
The behaviour is even stranger if I use mount.cifs:
luca at seis:~$ sudo moun...
2017 Sep 04
5
SPNEGO login failed: An internal error occurred
...0
SO_REUSEADDR = 0
SO_BROADCAST = 0
TCP_NODELAY = 1
TCP_KEEPCNT = 9
TCP_KEEPIDLE = 7200
TCP_KEEPINTVL = 75
IPTOS_LOWDELAY = 0
IPTOS_THROUGHPUT = 0
SO_REUSEPORT = 0
SO_SNDBUF = 2626560
SO_RCVBUF = 1061808
SO_SNDLOWAT = 1
SO_RCVLOWAT = 1
SO_SNDTIMEO = 0
SO_RCVTIMEO = 0
TCP_QUICKACK = 1
TCP_DEFER_ACCEPT = 0
session request ok
Doing spnego session setup (blob length=96)
got OID=1.2.840.48018.1.2.2
got OID=1.2.840.113554.1.2.2
got OID=1.3.6.1.4.1.311.2.2.10
got principal=not_defined_in_RFC4178 at please_ignore
cli_session_setup_spnego: using target hostname not SPNEGO prin...
2016 Mar 25
2
interdomain trust broken after upgrade to 4.1.17
...:
SO_KEEPALIVE = 0
SO_REUSEADDR = 0
SO_BROADCAST = 0
TCP_NODELAY = 1
TCP_KEEPCNT = 9
TCP_KEEPIDLE = 7200
TCP_KEEPINTVL = 75
IPTOS_LOWDELAY = 16
IPTOS_THROUGHPUT = 16
SO_REUSEPORT = 0
SO_SNDBUF = 16384
SO_RCVBUF = 16384
SO_SNDLOWAT = 1
SO_RCVLOWAT = 1
SO_SNDTIMEO = 0
SO_RCVTIMEO = 0
TCP_QUICKACK = 1
TCP_DEFER_ACCEPT = 0
Doing spnego session setup (blob length=74)
got OID=1.3.6.1.4.1.311.2.2.10
got principal=not_defined_in_RFC4178 at please_ignore
Got challenge flags:
Got NTLMSSP neg_flags=0x60898215
NTLMSSP_NEGOTIATE_UNICODE
NTLMSSP_REQUEST_TARGET
NTLMSSP_NEGOTIATE_SIGN
NTLMSSP_NE...
2017 Aug 15
0
cannot join windows 7 samba4-ad-dc fresh install, get NT_STATUS_INTERNAL_ERROR
...IPTOS_THROUGHPUT = 0
> SO_REUSEPORT = 0
> SO_SNDBUF = 2626560
> SO_RCVBUF = 1061808
> SO_SNDLOWAT = 1
> SO_RCVLOWAT = 1
> Could not test socket option SO_SNDTIMEO.
> Could not test socket option SO_RCVTIMEO.
> TCP_QUICKACK = 1
> TCP_DEFER_ACCEPT = 0
> session request ok
> Doing spnego session setup (blob length=96)
> got OID=1.2.840.48018.1.2.2
> got OID=1.2.840.113554.1.2.2
> got OID=1.3.6.1.4.1.311.2.2.10
> got principal=not_defined_in_RFC4178 at please_ignore
> cli_session_setup_sp...
2016 Nov 13
1
NT_STATUS_NO_LOGON_SERVERS
..._BROADCAST = 0
TCP_NODELAY = 1
TCP_KEEPCNT = 9
TCP_KEEPIDLE = 7200
TCP_KEEPINTVL = 75
IPTOS_LOWDELAY = 0
IPTOS_THROUGHPUT = 0
SO_REUSEPORT = 0
SO_SNDBUF = 44800
SO_RCVBUF = 341760
SO_SNDLOWAT = 1
SO_RCVLOWAT = 1
SO_SNDTIMEO = 0
SO_RCVTIMEO = 0
TCP_QUICKACK = 1
TCP_DEFER_ACCEPT = 0
session request ok
Doing spnego session setup (blob length=96)
got OID=1.2.840.48018.1.2.2
got OID=1.2.840.113554.1.2.2
got OID=1.3.6.1.4.1.311.2.2.10
got principal=not_defined_in_RFC4178 at please_ignore
GENSEC backend 'gssapi_spnego' registered
GENSEC backend...
2016 May 26
0
Regression: The 'net' command is now failing to login (UNKNOWN ENUM VALUE 1003?)
...= 9
TCP_KEEPIDLE = 7200
TCP_KEEPINTVL = 75
IPTOS_LOWDELAY = 0
IPTOS_THROUGHPUT = 0
SO_REUSEPORT = 0
SO_SNDBUF = 19800
SO_RCVBUF = 87380
SO_SNDLOWAT = 1
SO_RCVLOWAT = 1
Could not test socket option SO_SNDTIMEO.
Could not test socket option SO_RCVTIMEO.
TCP_QUICKACK = 1
Failed to load /var/lib/samba/lib/upcase.dat - No such file or directory
Failed to load /var/lib/samba/lib/lowcase.dat - No such file or directory
Failed to load upcase.dat, will use lame ASCII-only case sensitivity rules
Failed to load lowcase.dat, will use lame ASCII-only case sensitivity rul...
2018 Jul 09
2
Errors "Domain password server not available" and "SPNEGO login failed: The request is not supported"
...ADDR = 0
SO_BROADCAST = 0
TCP_NODELAY = 1
TCP_KEEPCNT = 9
TCP_KEEPIDLE = 7200
TCP_KEEPINTVL = 75
IPTOS_LOWDELAY = 0
IPTOS_THROUGHPUT = 0
SO_REUSEPORT = 0
SO_SNDBUF = 46080
SO_RCVBUF = 372480
SO_SNDLOWAT = 1
SO_RCVLOWAT = 1
SO_SNDTIMEO = 0
SO_RCVTIMEO = 0
TCP_QUICKACK = 1
TCP_DEFER_ACCEPT = 0
[2018/07/09 09:28:37.298134, 3, pid=31899, effective(0, 0), real(0, 0)]
../source3/libsmb/cliconnect.c:1837(cli_session_setup_spnego_send)
Doing spnego session setup (blob length=120)
[2018/07/09 09:28:37.298168, 3, pid=31899, effective(0, 0), real(0, 0)]
../source3/...