CODEWITHSUNDEEP
dpdkhuge-pages
Ankush Pandit
Ankush Pandit

Reputation: 396

t-rex Error: ERROR there is not enough huge-pages memory in your system

I am using t-rex traffic generator and when I try to run using sudo ./t-rex-64 -i --arp-refresh-period 30 it stops after giving the following error:

ERROR there is not enough huge-pages memory in your system Cause: Cannot init nodes mbuf pool nodes-0

Now my initial understanding is that there isn't enough space left in the system but the result of free -h shows otherwise.

          total        used        free      shared  buff/cache   available
Mem:       62G        9.2G         49G        159M        4.2G         52G
Swap:      31G        1.5M         31G

When I ran the t-rex command for the first time I found this warning message

WARNING: tried to configure 2048 hugepages for socket 0, but result is: 536

Is it possible that at first attempt it allocated space for 536 hugepages and in order to work properly I need to first free those spaces and re-allocate hugepages again?

Any kind of help is highly appreciated.

EDIT The result of grep Huge /proc/meminfo is:

AnonHugePages:   3686400 kB
HugePages_Total:    2048
HugePages_Free:     1536
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB

Upvotes: 0

Views: 2338

Answers (1)

Ankush Pandit
Ankush Pandit

Reputation: 396

I found a solution, but don't have the correct explanation behind this solution. So if anyone can explain, it will be really helpful.

The working solution is to add --astf flag, so the whole command will look like

sudo ./t-rex-64 -i --astf --arp-refresh-period 30

Upvotes: 0

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