Jerry-Fix

# iozone -Rab output.xls -i 0 -i 1 -i 2 -y 4K -q 2M -n 4K -g 20G -S 8M -+u -f /mnt/10/Bonnie.64999 -z | tee  iozone.txt
        Iozone: Performance Test of File I/O
                Version $Revision: 3.408 $
                Compiled for 64 bit mode.
                Build: linux 

        Contributors:William Norcott, Don Capps, Isom Crawford, Kirby Collins
                     Al Slater, Scott Rhine, Mike Wisner, Ken Goss
                     Steve Landherr, Brad Smith, Mark Kelly, Dr. Alain CYR,
                     Randy Dunlap, Mark Montague, Dan Million, Gavin Brebner,

Jerry-Fix

        Iozone: Performance Test of File I/O
                Version $Revision: 3.408 $
                Compiled for 64 bit mode.
                Build: linux 

        Contributors:William Norcott, Don Capps, Isom Crawford, Kirby Collins
                     Al Slater, Scott Rhine, Mike Wisner, Ken Goss
                     Steve Landherr, Brad Smith, Mark Kelly, Dr. Alain CYR,
                     Randy Dunlap, Mark Montague, Dan Million, Gavin Brebner,
                     Jean-Marc Zucconi, Jeff Blomberg, Benny Halevy, Dave Boone,

Jerry-Fix

[32799839.603312] swapper/14: page allocation failure: order:4, mode:0x4020
[32799839.603317] Pid: 0, comm: swapper/14 Tainted: G        W    3.2.0-34-generic #53-Ubuntu
[32799839.603320] Call Trace:
[32799839.603322]  <IRQ>  [<ffffffff8111ceb6>] warn_alloc_failed+0xf6/0x150
[32799839.603336]  [<ffffffff81120c57>] __alloc_pages_nodemask+0x6d7/0x8f0
[32799839.603341]  [<ffffffff8157646c>] ? inet_getpeer+0x17c/0x2b0
[32799839.603346]  [<ffffffff8153c74b>] ? secure_ip_id+0x3b/0x40
[32799839.603351]  [<ffffffff816474de>] kmalloc_large_node+0x57/0x85
[32799839.603357]  [<ffffffff81165ea5>] __kmalloc_node_track_caller+0x195/0x1e0
[32799839.603360]  [<ffffffff81534d8b>] ? __alloc_skb+0x4b/0x240

Jerry-Fix

Create raid
# ./MegaCli -CfgLdAdd -rX[E0:S0,E1:S1,...] [WT|WB] [NORA|RA|ADRA] [Direct|Cached]
        [CachedBadBBU|NoCachedBadBBU] [-szXXX [-szYYY ...]]
        [-strpszM] [-Hsp[E0:S0,...]] [-AfterLdX] | [FDE|CtrlBased]  
                [-Default| -Automatic| -None| -Maximum| -MaximumWithoutCaching] [-Cache] [-enblPI] [-Force]-aN 

Create RAID 0, 1, 5 drive
# ./MegaCli64 -CfgLdAdd -r(0|1|5) [E:S, E:S, ...] -aN

Create RAID 10 drive

Jerry-Fix

set title "SAS 10K 600G diff ioengine(libaio, mmap, sync) benchmark(bandwidth, IOPS) 100% randread"
set xlabel "blocksize(KB)"
set ylabel "bandwidth(MB/s)"
set y2label "IOPS"
set xtics 200
set y2tics 0,100,1500
set grid
set border 15
plot "raid10_diff_ioengine_randread_bandwidth_iops" using 1:2 with linespoints lt 30 title "libaio bandwidth",\
"raid10_diff_ioengine_randread_bandwidth_iops" using 1:3 with linespoints lt 31 title "mmap bandwidth",\

Jerry-Fix

#!/bin/bash

lines=$(sudo ss -lp   | grep $1 | awk '{print $3}' | cut -d: -f2 | sort | wc -l)

if [ "$1" == "mongod" ]
then
  portarray=(`sudo ss -lp | grep $1 | awk '{print $3}' | cut -d: -f2 | sort | head -n $(($lines/2)) 2>/dev/null`)
else
	portarray=(`sudo ss -lp | grep $1 | awk '{print $3}' | cut -d: -f2 | sort 2>/dev/null`)
fi

Jerry-Fix

I spend some time to have some test, all are redhat 6.2, here is the test.

1. Broadcom Corporation NetXtreme II BCM5709 Gigabit Ethernet(bnx2), host8, E5606x2

# lspci | grep net
01:00.0 Ethernet controller: Broadcom Corporation NetXtreme II BCM5709 Gigabit Ethernet (rev 20)
01:00.1 Ethernet controller: Broadcom Corporation NetXtreme II BCM5709 Gigabit Ethernet (rev 20)
02:00.0 Ethernet controller: Broadcom Corporation NetXtreme II BCM5709 Gigabit Ethernet (rev 20)
02:00.1 Ethernet controller: Broadcom Corporation NetXtreme II BCM5709 Gigabit Ethernet (rev 20)

Jerry-Fix

# dmidecode  -t cache
# dmidecode 2.9
SMBIOS 2.6 present.

Handle 0x0700, DMI type 7, 19 bytes
Cache Information
  Socket Designation: Not Specified
	Configuration: Enabled, Not Socketed, Level 1
	Operational Mode: Write Back
	Location: Internal

Jerry-Fix

# cpupower  monitor -l
Monitor "Nehalem" (4 states) - Might overflow after 922000000 s
C3  [C] -> Processor Core C3
C6	[C] -> Processor Core C6
PC3	[P] -> Processor Package C3
PC6	[P] -> Processor Package C6
Monitor "SandyBridge" (3 states) - Might overflow after 922000000 s
C7	[C] -> Processor Core C7
PC2	[P] -> Processor Package C2
PC7	[P] -> Processor Package C7

Jerry-Fix

ring buffer:

ethtool -g networkinterface

BCM5709:
Ring parameters for eth0:
Pre-set maximums:
RX:  	1020
RX Mini:	0
RX Jumbo:	4080