the problem is. i tested restricting the memory to 4 mb. but it still
runs oom. same memory consumption and from the qdisc show output i also
see that just a few kilobytes are used in that pool.
so the problem with cake must be somewhere else. its not the buffer
limit. i see values like memory used: 22176b of 4Mb which is really
nothing. most qdiscs are 0 and unused in that setup
Am 17.09.2019 um 11:40 schrieb Toke Høiland-Jørgensen:
Sebastian Gottschall <[email protected]> writes:
more simple patch
--- sch_cake.c (revision 41051)
+++ sch_cake.c (working copy)
@@ -2691,7 +2691,7 @@
do_div(t, USEC_PER_SEC / 4);
q->buffer_limit = max_t(u32, t, 4U << 20);
} else {
- q->buffer_limit = ~0;
+ q->buffer_limit = 4U << 20;
}
sch->flags &= ~TCQ_F_CAN_BYPASS;
As Jonathan remarked, the right thing to do here is to use the
memory_limit parameter to set a different limit when you setup the tree.
Still, I count 35 instances of CAKE in your setup; even with a 4MB limit
apiece, that is a total of 140 MB of potential packet memory. You'd need
to set it as low as 1 or 2 MB to be completely sure that you won't run
out of memory if they are all full...
-Toke
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