![]() | |||||||||||||
Messages in this thread |
The latest update:
It seems that Linux kernel memory management mechanisms including
buddy and slab algorisms are not very efficient under my test
conditions that tcp stack requires a lot of (hundreds of MB) packet
buffers and release them very frequently.
Here is the proof. After change my kernel configuration to support
2/2 VM splition, LOMEM consumption reduced to 270M bytes compared with
640M bytes of the 1/3 kernel. All test conditions are the same and
memory pages allocated by TCP stack are also the same, 34K ~ 38K
pages. In other words, 'lost' memory changed from ~500M to ~130M.
Thus, I have nothing to do but guessing the much more free pages make
the slab/buddy algorisms more efficient and waste less memory.
Finally I got what I want. Thank you all for your help and advices.
Xiaoming.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
| ||||||||||||
| Last update: 2006-11-07 06:03 [W:2.294 / U:0.060 seconds] ©2003-2008 Jasper Spaans | |||||||||||||