Re: Slow, persistent memory leak in 2.6.20

[Jan Engelhardt <jengelh@computergmbh.de>]

On Aug 26 2007 12:58, Fred Tyler wrote:
>> So I guess you are not seeing any memory leak at all, but just the regular
>> caching?
>
>Also, how can you explain the differences between the graphs of
>long-term memory usage? This first graph is from a server running
>2.6.16 that never has memory problems:
>
>    http://i239.photobucket.com/albums/ff117/fredty8/memory-a4.png
>
>And here's a graph of a server running 2.6.12 that has to be rebooted
>every month or two because it runs out of memory:
>
>    http://i239.photobucket.com/albums/ff117/fredty8/memory-a2.png

Indeed that looks like a leak. But perhaps it would be helpful to not only
match MemFree Buffers and Cached (from /proc/meminfo) but also Slab.

>Now, admittedly, the 2.6.20 server has not been running long enough to
>know whether or not it's going to start starving applications of
>memory, but the graph here looks a whole lot more like 2.6.12 than
>2.6.16, wouldn't you agree:
>
>    http://i239.photobucket.com/albums/ff117/fredty8/memory-b1.png

But it looks like.

>Those 2.6.12 servers caused me a ton of stress because I let the
>problem go too long before I did anything. In the event that 2.6.20 is
>doing the same thing, I'm trying to fix it before things get out of
>control.
>

	Jan
-- 
-
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/