On 08/28/2013 09:34 AM, Frederic Van Espen wrote:
On 08/28/2013 09:13 AM, Dietmar Maurer wrote:
yes, that can make a difference.
OK. Anyway, the new machine is also running on ext4. The number of
fsyncs/second is a lot higher there (different controller and disks though)
In the meantime, I've also set up a testing machine with the same type
of controller, but this time with 4 146GB SAS disks in RAID10.
Results are similar to the other 2 machines:
FSYNCS/SECOND: 219.32
I've also tried upgrading the controller firmware to the latest version
on this one, but no change.
Also on an ext3 filesystem, performance is similar:
FSYNCS/SECOND: 220.11
Also, here's some output from the RAID controller that may be useful to
anyone reading this:
root@vm006:~# arcconf GETCONFIG 1
Controllers found: 1
----------------------------------------------------------------------
Controller information
----------------------------------------------------------------------
Controller Status : Optimal
Channel description : SAS/SATA
Controller Model : Adaptec 5805
Controller Serial Number : 0D20116046C
Physical Slot : 1
Temperature : 61 C/ 141 F (Normal)
Installed memory : 512 MB
Copyback : Disabled
Background consistency check : Disabled
Automatic Failover : Enabled
Global task priority : High
Performance Mode : Default/Dynamic
Stayawake period : Disabled
Spinup limit internal drives : 0
Spinup limit external drives : 0
Defunct disk drive count : 0
Logical devices/Failed/Degraded : 1/0/0
SSDs assigned to MaxCache pool : 0
Maximum SSDs allowed in MaxCache pool : 8
MaxCache Read Cache Pool Size : 0.000 GB
MaxCache flush and fetch rate : 0
MaxCache Read, Write Balance Factor : 3,1
NCQ status : Enabled
Statistics data collection mode : Enabled
--------------------------------------------------------
Controller Version Information
--------------------------------------------------------
BIOS : 5.2-0 (18948)
Firmware : 5.2-0 (18948)
Driver : 1.1-7 (28000)
Boot Flash : 5.2-0 (18948)
--------------------------------------------------------
Controller Battery Information
--------------------------------------------------------
Status : Optimal
Over temperature : No
Capacity remaining : 99 percent
Time remaining (at current draw) : 1 days, 19 hours, 55 minutes
----------------------------------------------------------------------
Logical device information
----------------------------------------------------------------------
Logical device number 0
Logical device name :
RAID level : 10
Status of logical device : Optimal
Size : 279788 MB
Stripe-unit size : 256 KB
Read-cache mode : Enabled
MaxCache preferred read cache setting : Enabled
MaxCache read cache setting : Disabled
Write-cache mode : Enabled (write-back)
Write-cache setting : Enabled (write-back) when
protected by battery/ZMM
Partitioned : Yes
Protected by Hot-Spare : No
Bootable : Yes
Failed stripes : No
Power settings : Disabled
--------------------------------------------------------
Logical device segment information
--------------------------------------------------------
Group 0, Segment 0 : Present
(Controller:1,Connector:0,Device:0) 3QN0CTNZ00009919EQ3M
Group 0, Segment 1 : Present
(Controller:1,Connector:0,Device:1) 3QN1V3AM00009001L1HV
Group 1, Segment 0 : Present
(Controller:1,Connector:0,Device:2) 3QN0ATM900009919ELHK
Group 1, Segment 1 : Present
(Controller:1,Connector:0,Device:3) 3QN1SDG500009002NPWM
----------------------------------------------------------------------
Physical Device information
----------------------------------------------------------------------
Device #0
Device is a Hard drive
State : Online
Supported : Yes
Transfer Speed : SAS 3.0 Gb/s
Reported Channel,Device(T:L) : 0,0(0:0)
Reported Location : Connector 0, Device 0
Vendor : SEAGATE
Model : ST3146356SS
Firmware : 0004
Serial number : 3QN0CTNZ00009919EQ3M
World-wide name : 5000C50004F565A0
Size : 140014 MB
Write Cache : Enabled (write-back)
FRU : None
S.M.A.R.T. : No
S.M.A.R.T. warnings : 0
Power State : Full rpm
Supported Power States : Full rpm,Powered off
SSD : No
MaxCache Capable : No
MaxCache Assigned : No
Device #1
Device is a Hard drive
State : Online
Supported : Yes
Transfer Speed : SAS 3.0 Gb/s
Reported Channel,Device(T:L) : 0,1(1:0)
Reported Location : Connector 0, Device 1
Vendor : SEAGATE
Model : ST3146356SS
Firmware : 0005
Serial number : 3QN1V3AM00009001L1HV
World-wide name : 5000C50013613660
Size : 140014 MB
Write Cache : Enabled (write-back)
FRU : None
S.M.A.R.T. : No
S.M.A.R.T. warnings : 0
Power State : Full rpm
Supported Power States : Full rpm,Powered off
SSD : No
MaxCache Capable : No
MaxCache Assigned : No
Device #2
Device is a Hard drive
State : Online
Supported : Yes
Transfer Speed : SAS 3.0 Gb/s
Reported Channel,Device(T:L) : 0,2(2:0)
Reported Location : Connector 0, Device 2
Vendor : SEAGATE
Model : ST3146356SS
Firmware : 0004
Serial number : 3QN0ATM900009919ELHK
World-wide name : 5000C50004F55AE0
Size : 140014 MB
Write Cache : Enabled (write-back)
FRU : None
S.M.A.R.T. : No
S.M.A.R.T. warnings : 0
Power State : Full rpm
Supported Power States : Full rpm,Powered off
SSD : No
MaxCache Capable : No
MaxCache Assigned : No
Device #3
Device is a Hard drive
State : Online
Supported : Yes
Transfer Speed : SAS 3.0 Gb/s
Reported Channel,Device(T:L) : 0,3(3:0)
Reported Location : Connector 0, Device 3
Vendor : SEAGATE
Model : ST3146356SS
Firmware : 0005
Serial number : 3QN1SDG500009002NPWM
World-wide name : 5000C50013615018
Size : 140014 MB
Write Cache : Enabled (write-back)
FRU : None
S.M.A.R.T. : No
S.M.A.R.T. warnings : 0
Power State : Full rpm
Supported Power States : Full rpm,Powered off
SSD : No
MaxCache Capable : No
MaxCache Assigned : No
Command completed successfully.
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