[Linuxppc-users] Network dropped packages on Power is higher than x86

[Pradeep Satyanarayana]

There is an offline conversation that Rex started yesterday regarding the
same issue. We will update with any significant learning here.

Thanks
Pradeep
pradeep at us.ibm.com


From:	"Rex CH Kuo" <rexkuo at tw.ibm.com>
To:	power-port-tune <power-port-tune-bounces at lists.linux.ibm.com>,
            linuxppc-users at lists.ozlabs.org
Cc:	Michael FC Chang <fcchang at tw.ibm.com>, Dan Yang
            <yangdan at tw.ibm.com>, "S.H. Liu" <shliu at tw.ibm.com>
Date:	07/21/2017 07:43 AM
Subject:	[Linuxppc-users] Network dropped packages on Power is higher
            than x86
Sent by:	"Linuxppc-users" <linuxppc-users-bounces
            +pradeep=us.ibm.com at lists.ozlabs.org>



Dear,

Our customer is running in-house Java application on Docker on PowerLinux
and X86/Linux, found the network dropped packages on Power is higher than
x86. Any tuning experience can share?

Thank you very much.


-- docker for Power network interface



-- docker for x86 network interface



System configuration:
|--------+----------------------------------------------------+----------------------------------------------------|
|Platform|Power S812L                                         |Xeon E5-2667 v4                                     |
|--------+----------------------------------------------------+----------------------------------------------------|
|Core    |10 core                                             |16 core ( 2 x 8core)                                |
|--------+----------------------------------------------------+----------------------------------------------------|
|Speed   |3.42GHz IBM POWER8                                  |3.2 GHz Intel Xeon®E5-2667 v4 (3.6 GHz Turbo mode)  |
|--------+----------------------------------------------------+----------------------------------------------------|
|Thread  |SMT=8                                               |SMT=2                                               |
|--------+----------------------------------------------------+----------------------------------------------------|
|Memory  |256 GB memory  (8 x 32GB)                           |256 GB memory                                       |
|--------+----------------------------------------------------+----------------------------------------------------|
|Network |(1) 4-port 1GB Etherenet                            |(1) 2-port 1GB Etherenet                            |
|--------+----------------------------------------------------+----------------------------------------------------|
|HDD (OS |(4) 300 GB 15K SAS HDD with RAID 0                  |(2) 300 GB 15K SAS HDD (RAID card w/ 2Gb write      |
|Boot/   |(On board RAID Card w/o write cache memory)         |cache)                                              |
|Docker) |                                                    |                                                    |
|--------+----------------------------------------------------+----------------------------------------------------|
|OS      |RHEL 7.3                                            |RHEL 7.3                                            |
|        |Red Hat Enterprise Linux Server release 7.3 (Maipo) |Red Hat Enterprise Linux Server release 7.3 (Maipo) |
|--------+----------------------------------------------------+----------------------------------------------------|
|Docker  | -                                                  | -                                                  |
|Engine  |docker-ce-selinux-17.03.0.ce-1.el7.centos.noarch.rpm|docker-ce-selinux-17.03.0.ce-1.el7.centos.noarch.rpm|
|        | - docker-ce-17.03.0.ce-1.el7.centos.ppc_64.rpm     | - docker-ce-17.03.0.ce-1.el7.centos.x86_64.rpm     |
|--------+----------------------------------------------------+----------------------------------------------------|






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