Poor insert performance
I am currently facing an issue where an insert into a table is taking ~2hrs to insert 1 M rows. It appears that its due to a foriegn key constraint. is it normal that a ref constraint can slow down things 2X times? because its 2x times faster when i disable that constraint. what could be wrong with it?
yes.
here is the content from trace o/p
Event waited on Times Max. Wait Total Waited
---------------------------------------- Waited ---------- ------------
enq: FB - contention 3951 0.00 1.63
Disk file operations I/O 143 0.00 0.00
gc current grant 2-way 39110 0.01 10.94
db file sequential read 766473 0.56 3834.87
gc current grant busy 1917 0.00 0.81
gc current block 2-way 782 0.00 0.34
KJC: Wait for msg sends to complete 185 0.00 0.00
gc current multi block request 1835 0.00 1.22
gc current grant congested 233 0.00 0.06
enq: SK - contention 1 0.00 0.00
gc cr multi block request 290 0.00 0.26
row cache lock 55 0.00 0.01
db file scattered read 259 0.02 1.97
gc current block congested 4 0.00 0.00
latch: gc element 1 0.00 0.00
log file switch completion 2 0.03 0.05
gc buffer busy release 1 0.00 0.00
enq: TT - contention 1 0.00 0.00
log file sync 1 0.00 0.00
SQL*Net message to client 1 0.00 0.00
SQL*Net message from client 1 85.93 85.93
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Today arrived new version (6.12.99) of ATI OSS driver (also new version of ati-dri 7.6, mesa 7.6 and xorg-server 1.7.1) Since that moment I'm experiencing poor 2D performance, especially in GIMP (scrooling of zoomed canvas). Also switching of virt. desktop where is bloated Java app. or fat Firefox instance result in poor render of screen (program renders by parts/semiwindows).
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lspci
02:00.0 VGA compatible controller: ATI Technologies Inc Radeon R100 QD [Radeon 7200]
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[2009-11-02 08:53] starting full system upgrade
[2009-11-02 09:00] removed gnome-mount (0.8-1)
[2009-11-02 09:00] upgraded libdrm (2.4.13-1 -> 2.4.15-1)
[2009-11-02 09:00] upgraded libx11 (1.2.2-1 -> 1.3.2-1)
[2009-11-02 09:00] upgraded xextproto (7.0.5-1 -> 7.1.1-1)
[2009-11-02 09:00] upgraded libxext (1.0.5-2 -> 1.1.1-1)
[2009-11-02 09:00] upgraded libxxf86vm (1.0.99.1-1 -> 1.1.0-1)
[2009-11-02 09:00] upgraded fixesproto (4.0-3 -> 4.1.1-1)
[2009-11-02 09:00] upgraded libxfixes (4.0.3-2 -> 4.0.4-1)
[2009-11-02 09:00] upgraded libxdamage (1.1.1-2 -> 1.1.2-1)
[2009-11-02 09:00] upgraded libgl (7.5.1-2 -> 7.6-2)
[2009-11-02 09:00] upgraded ati-dri (7.5.1-2 -> 7.6-2)
[2009-11-02 09:00] upgraded bash (4.0.033-1 -> 4.0.035-1)
[2009-11-02 09:00] upgraded dbus-glib (0.82-1 -> 0.82-2)
[2009-11-02 09:00] upgraded gstreamer0.10 (0.10.24-1 -> 0.10.25-1)
[2009-11-02 09:00] upgraded libxv (1.0.4-1 -> 1.0.5-1)
[2009-11-02 09:00] upgraded gstreamer0.10-base (0.10.24-1 -> 0.10.25-1)
[2009-11-02 09:00] upgraded libtheora (1.0-1 -> 1.1.1-1)
[2009-11-02 09:00] upgraded gstreamer0.10-base-plugins (0.10.24-1 -> 0.10.25-1)
[2009-11-02 09:00] upgraded gstreamer0.10-python (0.10.16-1 -> 0.10.17-1)
[2009-11-02 09:00] upgraded exaile (0.3.0.1-2 -> 0.3.0.1-3)
[2009-11-02 09:00] upgraded libxt (1.0.6-1 -> 1.0.7-1)
[2009-11-02 09:00] upgraded xulrunner (1.9.1.3-2 -> 1.9.1.4-1)
[2009-11-02 09:00] upgraded firefox (3.5.3-1 -> 3.5.4-1)
[2009-11-02 09:00] upgraded gnome-disk-utility (2.28.0-1 -> 2.28.0-2)
[2009-11-02 09:00] upgraded gnutls (2.8.3-1 -> 2.8.4-1)
[2009-11-02 09:00] upgraded gstreamer0.10-ffmpeg (0.10.8-1 -> 0.10.9-1)
[2009-11-02 09:00] upgraded inputproto (1.5.1-2 -> 2.0-1)
[2009-11-02 09:00] upgraded kernel-headers (2.6.31.4-1 -> 2.6.31.4-2)
[2009-11-02 09:00] upgraded libatasmart (0.16-1 -> 0.17-1)
[2009-11-02 09:00] upgraded libdmx (1.0.99.1-1 -> 1.1.0-1)
[2009-11-02 09:00] upgraded libgksu (2.0.8-1 -> 2.0.12-1)
[2009-11-02 09:00] upgraded libgphoto2 (2.4.6-3 -> 2.4.7-1)
[2009-11-02 09:00] upgraded libgsf (1.14.15-1 -> 1.14.16-1)
[2009-11-02 09:00] upgraded libldap (2.4.18-1 -> 2.4.19-1)
[2009-11-02 09:00] upgraded libmpcdec (1.2.6-1 -> 1.2.6-2)
[2009-11-02 09:00] upgraded libsexy (0.1.11-1 -> 0.1.11-2)
[2009-11-02 09:00] upgraded libusb1 (1.0.1-1 -> 1.0.3-1)
[2009-11-02 09:00] upgraded libxmu (1.0.4-2 -> 1.0.5-1)
[2009-11-02 09:00] upgraded libxpm (3.5.7-2 -> 3.5.8-1)
[2009-11-02 09:00] upgraded libxaw (1.0.6-1 -> 1.0.7-1)
[2009-11-02 09:00] upgraded libxcomposite (0.4.0-2 -> 0.4.1-1)
[2009-11-02 09:00] upgraded libxdmcp (1.0.2-2 -> 1.0.3-1)
[2009-11-02 09:00] upgraded libxfont (1.4.0-1 -> 1.4.1-1)
[2009-11-02 09:00] upgraded libxfontcache (1.0.4-2 -> 1.0.5-1)
[2009-11-02 09:00] upgraded renderproto (0.9.3-2 -> 0.11-1)
[2009-11-02 09:00] upgraded libxrender (0.9.4-2 -> 0.9.5-1)
[2009-11-02 09:00] upgraded libxft (2.1.13-1 -> 2.1.14-1)
[2009-11-02 09:00] upgraded libxi (1.2.1-1 -> 1.3-2)
[2009-11-02 09:00] upgraded libxinerama (1.0.99.1-1 -> 1.1-1)
[2009-11-02 09:00] upgraded libxkbfile (1.0.5-1 -> 1.0.6-1)
[2009-11-02 09:00] upgraded libxres (1.0.3-2 -> 1.0.4-1)
[2009-11-02 09:00] upgraded libxtst (1.0.3-2 -> 1.1.0-1)
[2009-11-02 09:00] upgraded libxvmc (1.0.4-2 -> 1.0.5-1)
[2009-11-02 09:00] upgraded libxxf86dga (1.1.1-0.1 -> 1.1.1-1)
[2009-11-02 09:00] upgraded libxxf86misc (1.0.1-2 -> 1.0.2-1)
[2009-11-02 09:00] upgraded mesa (7.5.1-2 -> 7.6-2)
[2009-11-02 09:00] upgraded nautilus (2.28.0-1 -> 2.28.1-1)
[2009-11-02 09:00] upgraded nspr (4.8-1 -> 4.8.2-1)
[2009-11-02 09:00] upgraded openssh (5.3p1-1 -> 5.3p1-2)
[2009-11-02 09:00] upgraded pcre (7.9-1 -> 8.00-1)
[2009-11-02 09:00] upgraded sg3_utils (1.27-2 -> 1.28-1)
[2009-11-02 09:01] upgraded shared-mime-info (0.70-1 -> 0.70-2)
[2009-11-02 09:01] upgraded tightvnc (1.3.10-2 -> 1.3.10-3)
[2009-11-02 09:01] upgraded virtualbox-modules (3.0.8-1 -> 3.0.10-1)
[2009-11-02 09:01] upgraded virtualbox-ose (3.0.8-1 -> 3.0.10-1)
[2009-11-02 09:01] upgraded vte (0.22.2-1 -> 0.22.3-1)
[2009-11-02 09:01] upgraded xf86-input-evdev (2.2.5-1 -> 2.3.0-1)
[2009-11-02 09:01] upgraded xf86-video-ati (6.12.4-1 -> 6.12.99.git20091014-1)
[2009-11-02 09:01] upgraded xf86-video-vesa (2.2.0-1 -> 2.2.1-1)
[2009-11-02 09:01] upgraded xorg-apps (7.5-1.1 -> 7.5-2)
[2009-11-02 09:01] upgraded xorg-font-utils (7.4-3 -> 7.5-2)
[2009-11-02 09:01] upgraded xorg-fonts-alias (1.0.1-2 -> 1.0.2-1)
[2009-11-02 09:01] Regenerating font encodings... done.
[2009-11-02 09:01] upgraded xorg-fonts-encodings (1.0.2-3 -> 1.0.3-1)
[2009-11-02 09:01] upgraded xorg-server-utils (7.4-7 -> 7.5-3)
[2009-11-02 09:01] upgraded xorg-server (1.6.3.901-1 -> 1.7.1-1)
[2009-11-02 09:01] upgraded xorg-utils (7.4-4 -> 7.5-1)
[2009-11-02 09:01] upgraded xorg-xauth (1.0.3-1 -> 1.0.4-1)
[2009-11-02 09:01] upgraded xorg-xkb-utils (7.4-2 -> 7.5-1)
[2009-11-02 09:01] upgraded xterm (246-1 -> 250-1)
cat /etc/X11/xorg.conf
Section "ServerLayout"
Identifier "X.org Configured"
Screen 0 "Screen0" 0 0
InputDevice "Mouse0" "CorePointer"
InputDevice "Keyboard0" "CoreKeyboard"
EndSection
Section "Files"
ModulePath "/usr/lib/xorg/modules"
FontPath "/usr/share/fonts/misc"
FontPath "/usr/share/fonts/100dpi:unscaled"
FontPath "/usr/share/fonts/75dpi:unscaled"
FontPath "/usr/share/fonts/TTF"
FontPath "/usr/share/fonts/Type1"
EndSection
Section "Module"
Load "glx"
Load "dri"
Load "drm"
EndSection
Section "InputDevice"
Identifier "Keyboard0"
Driver "kbd"
EndSection
Section "InputDevice"
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/input/mice"
Option "ZAxisMapping" "4 5 6 7"
EndSection
Section "Monitor"
Identifier "Monitor0"
VendorName "LTN"
ModelName "H1996NSL/PNST"
HorizSync 30.0 - 96.0
VertRefresh 50.0 - 160.0
Option "DPMS"
EndSection
Section "Device"
#Option "NoAccel" # [<bool>]
#Option "SWcursor" # [<bool>]
Option "AGPMode" "4" # <i>
#Option "AGPFastWrite" # [<bool>]
#Option "AGPSize" # <i>
#Option "GARTSize" # <i>
#Option "RingSize" # <i>
#Option "BufferSize" # <i>
#Option "EnableDepthMoves" # [<bool>]
Option "EnablePageFlip" "on" # [<bool>]
#Option "NoBackBuffer" # [<bool>]
#Option "DMAForXv" # [<bool>]
#Option "FBTexPercent" # <i>
#Option "DepthBits" # <i>
#Option "PCIAPERSize" # <i>
#Option "AccelDFS" # [<bool>]
#Option "IgnoreEDID" # [<bool>]
#Option "DisplayPriority" # [<str>]
#Option "PanelSize" # [<str>]
#Option "ForceMinDotClock" # <freq>
Option "ColorTiling" "on" # [<bool>]
#Option "VideoKey" # <i>
#Option "RageTheatreCrystal" # <i>
#Option "RageTheatreTunerPort" # <i>
#Option "RageTheatreCompositePort" # <i>
#Option "RageTheatreSVideoPort" # <i>
#Option "TunerType" # <i>
#Option "RageTheatreMicrocPath" # <str>
#Option "RageTheatreMicrocType" # <str>
#Option "ScalerWidth" # <i>
Option "RenderAccel" "on" # [<bool>]
#Option "SubPixelOrder" # [<str>]
#Option "ShowCache" # [<bool>]
#Option "DynamicClocks" # [<bool>]
#Option "VGAAccess" # [<bool>]
#Option "ReverseDDC" # [<bool>]
#Option "LVDSProbePLL" # [<bool>]
#Option "AccelMethod" # <str>
Option "DRI" "on" # [<bool>]
#Option "ConnectorTable" # <str>
#Option "Int10" # [<bool>]
#Option "EXAVSync" # [<bool>]
Identifier "Card0"
Driver "radeon"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Card0"
Monitor "Monitor0"
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1280x1024"
EndSubSection
EndSection
Section "DRI"
Group "video"
Mode 0666
EndSection
glxinfo
http://pastebin.com/f71f5461c
BTW I'm not using Compiz. Has anyone an idea what could happen? In Glxgears I'm achieving 1200fps, but working with GIMP is laggy-horror.
THX.
Last edited by Srigi (2009-11-04 07:27:45)exactly the same here...
01:00.0 VGA compatible controller: ATI Technologies Inc RV350 [Mobility Radeon 9600 M10]
glxinfo: http://pastebin.com/m75fc2c9
Xorg.0.log: http://pastebin.com/m267826b1
xorg.conf: http://pastebin.com/m75c033c2
greets,
smax -
Bad INSERT performance when using GUIDs for indexes
Hi,
we use Ora 9.2.0.6 db on Win XP Pro. The application (DOT.NET v1.1) is using ODP.NET. All PKs of the tables are GUIDs represented in Oracle as RAW(16) columns.
When testing with mass data we see more and more a problem with bad INSERT performance on some tables that contain many rows (~10M). Those tables have an RAW(16) PK and an additional non-unique index which is also set on a RAW(16) column (both are standard B*tree). An PerfStat reports tells that there is much activity on the Index tablespace.
When I analyze the related table and its indexes I see a very very high clustering factor.
Is there a way how to improve the insert performance in that case? Use another type of index? Generally avoid indexed RAW columns?
Please help.
DanielHi
After my last tests I conclude at the followings:
The query returns 1-30 records
Test 1: Using Form Builder
- Execution time 7-8 seconds
Test 2: Using Jdeveloper/Toplink/EJB 3.0/ADF and Oracle AS 10.1.3.0
- Execution time 25-27 seconds
Test 3: Using JDBC/ADF and Oracle AS 10.1.3.0
- Execution time 17-18 seconds
When I use:
session.setLogLevel(SessionLog.FINE) and
session.setProfiler(new PerformanceProfiler())
I don’t see any improvement in the execution time of the query.
Thank you
Thanos -
Hi Experts ,
1. could someone guide me on understanding what are things that impact insert performance in an oltp application with ~25 concurrent sessions doing 20 inserts/session into table X. ? (env- oracle 11g ,3 node RAC , ASSM tablespace , tables X is range partitioned )
2. If any storage parameter is not property set then how to identify which one needs to be fixed?
Note: current insert performance is : 0.02 sec/insert.Hi Garry,
Thanks for your response.
some more info regarding app : DB version 11.2.0.3 . Below is the awr info during peak load for 1 hr snap. any suggestions are helpful.
Cache Sizes Begin End
~~~~~~~~~~~ ---------- ----------
Buffer Cache: 18,624M 18,624M Std Block Size: 8K
Shared Pool Size: 3,200M 3,200M Log Buffer: 25,888K
Load Profile Per Second Per Transaction Per Exec Per Call
~~~~~~~~~~~~ --------------- --------------- ---------- ----------
DB Time(s): 4.9 0.0 0.01 0.00
DB CPU(s): 0.5 0.0 0.00 0.00
Redo size: 585,778.7 2,339.6
Logical reads: 24,046.6 96.0
Block changes: 2,374.5 9.5
Physical reads: 1,101.6 4.4
Physical writes: 394.6 1.6
User calls: 2,086.6 8.3
Parses: 9.5 0.0
Hard parses: 0.5 0.0
W/A MB processed: 5.8 0.0
Logons: 0.6 0.0
Executes: 877.7 3.5
Rollbacks: 218.6 0.9
Transactions: 250.4
Instance Efficiency Percentages (Target 100%)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Buffer Nowait %: 99.99 Redo NoWait %: 99.99
Buffer Hit %: 95.44 In-memory Sort %: 100.00
Library Hit %: 99.81 Soft Parse %: 95.16
Execute to Parse %: 98.92 Latch Hit %: 99.89
Parse CPU to Parse Elapsd %: 92.50 % Non-Parse CPU: 97.31
Shared Pool Statistics Begin End
Memory Usage %: 75.36 74.73
% SQL with executions>1: 90.63 90.41
% Memory for SQL w/exec>1: 83.10 85.49
Top 5 Timed Foreground Events
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Event Waits Time(s) Avg(ms) %DBtime Wait Class
db file sequential read 3,686,200 15,658 4 87.7 User I/O
DB CPU 1,802 10.1
db file parallel read 19,646 189 10 1.1 User I/O
gc current grant 2-way 842,079 145 0 .8 Cluster
gc current block 2-way 425,663 106 0 .6 Cluster -
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I found the issue with the iPhone 4S battery performance.
I bought 2 iPhone 4S models on the first day. One for my wife and one for me. The strange thing was that mine would kill the battery in 4-6 hours and ran VERY WARM to the touch. My wife's phone worked great. It was cold to the touch. She would forget to charge it at night... and the battery performance was great... even better than our prior 3GS models.
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So, it appears that Notification Center has an endless loop in collecting the calendar events from Exchange and this is burning up our 4S batteries. Once you stop the madness from Notification Center, your iPhone 4S will perform as advertised.
Enjoy!
TimTimothyW wrote:
iPhone 4S Poor Battery Performance SOLVED!!
I found the issue with the iPhone 4S battery performance.
I bought 2 iPhone 4S models on the first day. One for my wife and one for me. The strange thing was that mine would kill the battery in 4-6 hours and ran VERY WARM to the touch. My wife's phone worked great. It was cold to the touch. She would forget to charge it at night... and the battery performance was great... even better than our prior 3GS models.
What was the difference? I have my phone connected to Exchange for my corporate email. But exchange is not exactly the problem. The issue is in Notification Center. For some reason, I had hundreds of calendar reminders that kept refreshing on notification center. Furthermore, the reminders would flicker between the time remaining and the start time for the event at such a fast rate that it could not be read... (clearly a bug)
What is the solution? Go to Settings>Notifications>Calendar and disable Notification Center. You can still have the "alert style" set to Banners, or Alerts and you will still receive notices about your events, but it will not BUILD a summary in the Notification Center drop down screen. This is where the BUG exists. [Oddly, this does not affect my iPad 2, but is an issue for iOS 5 on the iPhone (different builds, maybe?)]
So, it appears that Notification Center has an endless loop in collecting the calendar events from Exchange and this is burning up our 4S batteries. Once you stop the madness from Notification Center, your iPhone 4S will perform as advertised.
Enjoy!
Tim
Check this out. They are stumpped:
http://www.guardian.co.uk/technology/2011/oct/28/iphone-4s-battery-apple-enginee rs -
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Best Regards,
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Hi.
Include your product name and specs such as processor speed, memory, and storage capacity. Please do not include your Serial Number, IMEI, MEID, or other personal information.
Macbook Pro retina (early 2013)
2.7 GHz Intel Core I7
16GB 1600 MHz DDR3
NVIDIA GeForce GT 650M 1024 MB
512 GB SSD
Provide the version numbers of your operating system and relevant applications, for example "iOS 6.0.3" or "iPhoto 9.1.2".
OS X 10.9.3 (13D65)
Describe the problem, and include any details about what seems to cause it.
My rMBP has poor graphical performance compared to other rMBP. I think there might be something wrong inside it. Appstore or Steam games for Mac (Bioshock Inf and Max Payne 3) at lowest graphical settings will give me between 5-10FPS. I think this might be weird for such a well specced computer.
List any troubleshooting steps you've already tried, or temporary fixes you've discovered.
Formatting, bootcamp with Win7, Updating to mavericks, stopping apps, Reset SMC.
Nothing has worked yet. I don't play games often, but since i first started trying a few times last year, i've noticed that it's almost impossible,You should be getting more FPS. Do you have switched graphic card option on or off in the energy saving section?
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Compaq 8510w, poor SSD performance
Something seems to be limiting my read performance with a SSD installed. Running Windows 7 (64-bit), with the latest BIOS, Intel Driver INF and SSD Toolbox (for TRIM). Drive is Intel X25-M G2 80GB, spec-ed at ~250MB/s for sequential writes. Benchmarks tested include HD Tune, HD Tach, ATTO, Datamarck and DiskMark. All show around 55MB/s sequential read with W7 resource monitor confirming that throughput.
I have found articles online describing "poor SSD" performance due to either running SATA-I vs. SATA-II or AHCI vs. IDE. The drive is running IDE (UDMA-5) and SATA-II. What is described as poor performance is 225MB/s for IDE vs. UHCI and 175MB/s for SATA-I vs. SATA-II. No where near the performance I see.
I have also run across posts mentioning that the 8510w utilizes a bridge for IDE to SATA. If this is the case, the bridge could be the culprit. Any insight would be appreciated.Hi doasc,
I just re-imaged my 8510w to Windows 7 onto a Kingston SSDNow V Series 128 GB drive.
I was quite silly and did not run HD Tune before enabling the employer mandated McAfee Endpoint Encryption whole disk encryption.
I get 60MB/sec in HD Tune with the disk encrypted - and you are likely quite correct about getting better results without disk encryption enabled and I wish I had tested it that way first.
/dan -
Jdbc thin driver bulk binding slow insertion performance problem
Hello All,
We have a third party application reporting slow insertion performance, while I traced the session and found out most of elapsed time for one insert execution is sql*net more data from client, it appears bulk binding is being used here because one execution has 200 rows inserted. I am wondering whether this has something to do with their jdbc thin driver(10.1.0.2 version) and our database version 9205. Do you have any similar experience on this, what other possible directions should I explore?
here is the trace report from 10046 event, I hide table name for privacy reason.
Besides, I tested bulk binding in PL/SQL to insert 200 rows in one execution, no problem at all. Network folks confirm that network should not be an issue as well, ping time from app server to db server is sub milisecond and they are in the same data center.
INSERT INTO ...
values
(:1, :2, :3, :4, :5, :6, :7, :8, :9, :10, :11, :12, :13, :14, :15, :16, :17,
:18, :19, :20, :21, :22, :23, :24, :25, :26, :27, :28, :29, :30, :31, :32,
:33, :34, :35, :36, :37, :38, :39, :40, :41, :42, :43, :44, :45)
call count cpu elapsed disk query current rows
Parse 1 0.00 0.00 0 0 0 0
Execute 1 0.02 14.29 1 94 2565 200
Fetch 0 0.00 0.00 0 0 0 0
total 2 0.02 14.29 1 94 2565 200
Misses in library cache during parse: 1
Optimizer goal: CHOOSE
Parsing user id: 25
Elapsed times include waiting on following events:
Event waited on Times Max. Wait Total Waited
---------------------------------------- Waited ---------- ------------
SQL*Net more data from client 28 6.38 14.19
db file sequential read 1 0.02 0.02
SQL*Net message to client 1 0.00 0.00
SQL*Net message from client 1 0.00 0.00
********************************************************************************I have exactly the same problem, I tried to find out what is going on, changed several JDBC Drivers on AIX, but no hope, I also have ran the process on my laptop which produced a better and faster performance.
Therefore I made a special solution ( not practical) by creating flat files and defining the data as an external table, the oracle will read the data in those files as they were data inside a table, this gave me very fast insertion into the database, but still I am looking for an answer for your question here. Using Oracle on AIX machine is a normal business process followed by a lot of companies and there must be a solution for this. -
Jdbc thin driver and bulk binding slow insertion performance
Hello All,
We have a third party application reporting slow insertion performance, while I traced the session and found out most of elapsed time for one insert execution is sql*net more data from client, it appears bulk binding is being used here because one execution has 200 rows inserted. I am wondering whether this has something to do with their jdbc thin driver(10.1.0.2 version) and our database version 9205. Do you have any similar experience on this, what other possible directions should I explore?
here is the trace report from 10046 event, I hide table name for privacy reason.
Besides, I tested bulk binding in PL/SQL to insert 200 rows in one execution, no problem at all. Network folks confirm that network should not be an issue as well, ping time from app server to db server is sub milisecond and they are in the same data center.
INSERT INTO ...
values
(:1, :2, :3, :4, :5, :6, :7, :8, :9, :10, :11, :12, :13, :14, :15, :16, :17,
:18, :19, :20, :21, :22, :23, :24, :25, :26, :27, :28, :29, :30, :31, :32,
:33, :34, :35, :36, :37, :38, :39, :40, :41, :42, :43, :44, :45)
call count cpu elapsed disk query current rows
Parse 1 0.00 0.00 0 0 0 0
Execute 1 0.02 14.29 1 94 2565 200
Fetch 0 0.00 0.00 0 0 0 0
total 2 0.02 14.29 1 94 2565 200
Misses in library cache during parse: 1
Optimizer goal: CHOOSE
Parsing user id: 25
Elapsed times include waiting on following events:
Event waited on Times Max. Wait Total Waited
---------------------------------------- Waited ---------- ------------
SQL*Net more data from client 28 6.38 14.19
db file sequential read 1 0.02 0.02
SQL*Net message to client 1 0.00 0.00
SQL*Net message from client 1 0.00 0.00
********************************************************************************I have exactly the same problem, I tried to find out what is going on, changed several JDBC Drivers on AIX, but no hope, I also have ran the process on my laptop which produced a better and faster performance.
Therefore I made a special solution ( not practical) by creating flat files and defining the data as an external table, the oracle will read the data in those files as they were data inside a table, this gave me very fast insertion into the database, but still I am looking for an answer for your question here. Using Oracle on AIX machine is a normal business process followed by a lot of companies and there must be a solution for this.
Maybe you are looking for
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