Hello,
I am trying to use libaio engine for a job file in my docker
container, but it throws fio: engine libaio not loadable error.
fio --name=hello1 --size=1m --ioengine=libaio
fio: engine libaio not loadable
fio: engine libaio not loadable
fio: failed to load engine
fio: file:ioengines.c:89, func=dlopen, error=libaio: cannot open
shared object file: No such file or directory
Available IO engines:
[root@210df130f2c7 fio-data]# fio --enghelp
Available IO engines:
cpuio
mmap
sync
psync
vsync
pvsync
pvsync2
null
net
netsplice
ftruncate
filecreate
posixaio
falloc
e4defrag
splice
mtd
sg
libaio is not listed above, but its installed in container.
yum install libaio
Loaded plugins: fastestmirror, ovl
Loading mirror speeds from cached hostfile
* base: ftp.iitm.ac.in
* extras: ftp.iitm.ac.in
* updates: ftp.iitm.ac.in
Package libaio-0.3.109-13.el7.x86_64 already installed and latest version
Nothing to do
Centos docker container : centos-release-7-5.1804.5.el7.centos.x86_64
Re pvsync2 operation not permitted error
fio --name=hello --size=10m --ioengine=pvsync2
hello: (g=0): rw=read, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T)
4096B-4096B, ioengine=pvsync2, iodepth=1
fio-3.12-18-g92a1
Starting 1 process
hello: Laying out IO file (1 file / 10MiB)
fio: io_u error on file hello.0.0: Operation not permitted: read
offset=0, buflen=4096
fio: pid=59, err=1/file:io_u.c:1789, func=io_u error, error=Operation
not permitted
hello: (groupid=0, jobs=1): err= 1 (file:io_u.c:1789, func=io_u error,
error=Operation not permitted): pid=59: Sun Nov 25 19:23:14 2018
cpu : usr=0.00%, sys=0.00%, ctx=2, majf=0, minf=19
IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued rwts: total=1,0,0,0 short=0,0,0,0 dropped=0,0,0,0
latency : target=0, window=0, percentile=100.00%, depth=1
Run status group 0 (all jobs):
Disk stats (read/write):
sda: ios=0/0, merge=0/0, ticks=0/0, in_queue=0, util=0.00%
I dont have access to machine running centos, so running in centos
docker container. Are these issues occuring because of running in fio?
host machine OS is ubuntu 18.04.
Thanks and Regards,
Mohan
