Hello,
I am using VPP 17.07 and initialized heap memory as 3G in startup
configuration.
My use case is to have 4k sub-interfaces to differentiated by VLAN and
associated each sub-interface with unique VRF. Eventually using 4k FIBs.
However i am observing VPP is crashing with memory crunch while adding an
ip route.
backtrace
#0 0x00007fae4c981cc9 in __GI_raise (sig=sig@entry=6) at
../nptl/sysdeps/unix/sysv/linux/raise.c:56
#1 0x00007fae4c9850d8 in __GI_abort () at abort.c:89
#2 0x00000000004070b3 in os_panic ()
at
/jenkins_home/workspace/vFE/vFE_Release_Master_Build/datapath/vpp/build-data/../src/vpp/vnet/main.c:263
#3 0x00007fae4d19007a in clib_mem_alloc_aligned_at_offset
(os_out_of_memory_on_failure=1,
align_offset=<optimized out>, align=64, size=1454172096)
at
/jenkins_home/workspace/vFE/vFE_Release_Master_Build/datapath/vpp/build-data/../src/vppinfra/mem.h:102
#4 vec_resize_allocate_memory (v=v@entry=0x7fade2c44880,
length_increment=length_increment@entry=1,
data_bytes=<optimized out>, header_bytes=<optimized out>,
header_bytes@entry=24,
data_align=data_align@entry=64)
at
/jenkins_home/workspace/vFE/vFE_Release_Master_Build/datapath/vpp/build-data/../src/vppinfra/vec.c:84
#5 0x00007fae4db9210c in _vec_resize (data_align=<optimized out>,
header_bytes=<optimized out>,
data_bytes=<optimized out>, length_increment=<optimized out>,
v=<optimized out>)
at
/jenkins_home/workspace/vFE/vFE_Release_Master_Build/datapath/vpp/build-data/../src/vppinfra/vec.h:142
I initially suspected FIB is consuming more heap space. But I do see much
memory consumed by FIB table also and felt 3GB of heap is sufficient
vpp# show fib memory
FIB memory
Name Size in-use /allocated totals
Entry 72 60010 / 60010 4320720/4320720
Entry Source 32 68011 / 68011 2176352/2176352
Entry Path-Extensions 60 0 / 0 0/0
multicast-Entry 192 4006 / 4006 769152/769152
Path-list 48 60016 / 60016 2880768/2880768
uRPF-list 16 76014 / 76015 1216224/1216240
Path 80 60016 / 60016 4801280/4801280
Node-list elements 20 76017 / 76019 1520340/1520380
Node-list heads 8 68020 / 68020 544160/544160
Is there any way to identify usage of heap memory in other modules?
Any pointers would be helpful.
Regards,
Balaji
_______________________________________________
vpp-dev mailing list
vpp-dev@lists.fd.io
https://lists.fd.io/mailman/listinfo/vpp-dev
