migration to Xtradb Cluster done but query very slow

Hi,

For more information i can add this sysbench also.

from mariadb :

[URL]http://pastebin.com/MbQfmcMf[/URL]

from PXC :

[URL]http://pastebin.com/jbgQc29m[/URL]

also a pt-query-digest /var/lib/mysql/slow.log : [URL]http://pastebin.com/G9MyD4BH[/URL]

Thanks for your help.