Was wonder if there was a tool or program I could run to measure throughput on our CentoS 4.x server. Our current dedicated host provider is charging us by how much throughput we are using and I just want to see if their numbers add up to whatever I get using a throughput tool of some kind.
... (6 Replies)
As a rule of thumb in doing calculations, what figure would you use in Mbytes/sec? I know the answer varies grealty on the topolgy of the network but I wonde what newteok engineers use a rough rule of thumb?
Many thanks. (1 Reply)
Hey guys
First post... and im not exactly a solaris guru but here goes
Ive setup a solaris 10 box with a raidz2 set of 6 disks...
I have also setup Samba with open shares for some CIFs access...
now my issue is that when i transfer large files to it the network performance contantly... (8 Replies)
Hello gurus,
I have the following configuration in the server side:
# dladm show-aggr
key: 33 (0x0021) policy: L4 address: 0:14:4f:6c:11:8 (auto)
device address speed duplex link state
nxge0 0:14:4f:6c:11:8 1000 Mbps ... (3 Replies)
Hello,
First time poster here hoping to get some help with ns2.
I've recently started using ns2(first time user) but I'm having difficulty getting the results I'm after.
I am trying to set up a network with wireless nodes(5-15 nodes) and then use xgraph to display a timing diagram,... (0 Replies)
Hey Guys,
Does anybody know, which OID's of Net-SNMP is used to collect throughput and bandwith usage of machine??
I got these OID's
..iso.org.dod.internet.mgmt.mib-2.interfaces.ifTable.ifEntry.ifOutOctets
..1.3.6.1.2.1.2.2.1.16
... (1 Reply)
Hi All,
I have done IEEE 802.3ad Dynamic link aggregation bond configuration with name bond0 which has 4 slaves (each 25GB/s) in it on cent os 6.8. Issue i am facing is bonding throughput is only 50GB/s not 100GB/s. below are the configuration files :
DEVICE=bond0
IPADDR=xx.xx.xx.xx... (1 Reply)
Discussion started by: omkar.jadhav
1 Replies
LEARN ABOUT HPUX
nfs3_nra
nfs3_nra(5) File Formats Manual nfs3_nra(5)NAME
nfs3_nra - control the number of read-ahead operations queued by the NFS version 3 client when sequentially accessing a file
VALUES
Failsafe
Default
Allowed values
Recommended values
A warning will be issued at runtime if the tunable is set to a value greater than 16 since this is beyond the tested limit. This is not a
serious warning but just an information message for the administrator.
DESCRIPTION
controls the number of read-ahead operations that are queued by the NFS version 3 client when sequential access to a file is discovered.
These read-ahead operations increase concurrency and read throughput. Each read-ahead request is generally for 32768 bytes of file data.
Who Is Expected to Change This Tunable?
The distributed file system administrator should examine this value depending on network bandwidth and memory pressure on the client.
Restrictions on Changing
The tunable is dynamic; tuning will take effect immediately on the running system.
When Should the Value of This Tunable Be Raised?
If the network is very high bandwidth and the client and server have sufficient resources, increase this value to more effectively utilize
the available network bandwidth, the client resources, and the server resources.
What Are the Side Effects of Raising the Value?
Tuning incorrectly based on network bandwidth can cause performance problems.
When Should the Value of This Tunable Be Lowered?
In a very low bandwidth network, decrease this value so the NFS client does not overload the network.
What Are the Side Effects of Lowering the Value?
Tuning incorrectly based on network bandwidth can cause performance problems.
WARNINGS
All HP-UX kernel tunable parameters are release specific. This parameter may be removed or have its meaning changed in future releases of
HP-UX.
Installation of optional kernel software, from HP or other vendors, may cause changes to tunable parameter values. After installation,
some tunable parameters may no longer be at the default or recommended values. For information about the effects of installation on tun-
able values, consult the documentation for the kernel software being installed. For information about optional kernel software that was
factory installed on your system, see at
AUTHOR
was developed by Sun Microsystems, Inc.
SEE ALSO kctune(1M), sam(1M), gettune(2), settune(2), nfs2_nra(5), nfs4_nra(5), values(5).
Tunable Kernel Parameters nfs3_nra(5)