Difference between revisions of "Linux Tuning"
From ElphelWiki
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Data about kernel tuning will be collected here. | Data about kernel tuning will be collected here. | ||
| + | ==Network tuning== | ||
| + | To allow receive of multicast packets it is necessary to set route rules for multicast: | ||
| + | |||
| + | # route add -net 224.0.0.0 netmask 240.0.0.0 dev eth0 | ||
| + | |||
| + | To avoid packet lossing it is necessary to increase a size of socket receive buffer to 1500000 bytes (tested with [[Recorder|ElphelOgm]] on Intel(R) Pentium(R) 4 CPU 3.20GHz with 100Mbit ethernet card and multicast flow from the camera about 6MB/s). | ||
| + | |||
| + | # echo 1500000 > /proc/sys/net/core/rmem_max | ||
| + | # echo 1500000 > /proc/sys/net/core/rmem_default | ||
==Links== | ==Links== | ||
Revision as of 09:40, 2 January 2006
Data about kernel tuning will be collected here.
Network tuning
To allow receive of multicast packets it is necessary to set route rules for multicast:
# route add -net 224.0.0.0 netmask 240.0.0.0 dev eth0
To avoid packet lossing it is necessary to increase a size of socket receive buffer to 1500000 bytes (tested with ElphelOgm on Intel(R) Pentium(R) 4 CPU 3.20GHz with 100Mbit ethernet card and multicast flow from the camera about 6MB/s).
# echo 1500000 > /proc/sys/net/core/rmem_max # echo 1500000 > /proc/sys/net/core/rmem_default
Links
Old discussions on SourceForge
Linux Tuning Guide (for 2.4 kernels)
Red Hat Enterprise Linux 4: Reference Guide: Directories within /proc/
