Node 0 AnonHugePages:         0 kB

Node 0 HugePages_Total:    16

Node 0 HugePages_Free:     16

Node 0 HugePages_Surp:      0

Node 1 AnonHugePages:         0 kB

Node 1 HugePages_Total:    16

Node 1 HugePages_Free:     16

Node 1 HugePages_Surp:      0

 

From: Alfredo Cardigliano [mailto:[email protected]] 
Sent: Thursday, October 01, 2015 12:57 AM
To: [email protected]
Subject: Re: [Ntop-misc] ZC hugepages error

 

Hi Craig

please provide cat /sys/devices/system/node/node*/meminfo | grep Huge

 

Alfredo

 

On 01 Oct 2015, at 01:11, Craig Merchant <HYPERLINK 
"mailto:[email protected]"[email protected]> wrote:

 

I am trying to get ZC up and running on Oracle Enterprise Linux 7 (Linux 
ord12-v-sec-cap-05 3.10.0-229.11.1.el7.x86_64 #1 SMP Wed Aug 5 13:40:15 PDT 
2015 x86_64 x86_64 x86_64 GNU/Linux) using the latest version of pf_ring.

 

I have licenses for both of my interfaces.

 

I have installed the pf_ring and ZC ixgbe driver.  I’ve tried running zsend on 
one of my ZC capable interfaces, but I get the following:

 

./zsend -i zc:enp48s0f0 -c 1 -g 0 -b 8 -l 60

pfring_zc_create_cluster error [No buffer space available] Please check your 
hugetlb configuration

 

My hugepages config is:

 

sysctl -a | grep huge

vm.hugepages_treat_as_movable = 0

vm.hugetlb_shm_group = 0

vm.nr_hugepages = 32

vm.nr_hugepages_mempolicy = 32

vm.nr_overcommit_hugepages = 0

 

cat /proc/meminfo | grep Hugepagesize

Hugepagesize:    1048576 kB

 

I would think that 32 x 1 GB hugepages would be enough…

 

On the file system, they are mounted:

 

mount | grep huge

cgroup on /sys/fs/cgroup/hugetlb type cgroup 
(rw,nosuid,nodev,noexec,relatime,hugetlb)

hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime)

nodev on /mnt/hugepages type hugetlbfs (rw,relatime)

 

Any thoughts as to what I am doing wrong here…?

Thx.

 

C

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