Opera performance degraded after systemd and fixing catalyst
Two days ago, I ran pacman -Syu. I noticed after rebooting that the catalyst drivers weren't being loaded. Curiously, a previous pacman -R $(pacman -Qtdq) removed linux-headers, despite them being needed by the installed catalyst-utils. I reinstalled linux-headers, added fglrx to /etc/modules-load.d, and rebooted. The messages at boot showed that the drivers built just fine, and when the system started, all seemed well. 3D acceleration is indeed working, my games run just as they did before. Opera, however, does not. When it works, the performance is awful. Css animations play back between one and two frames per second. Also, the application occasionally crashes. When running on the terminal, there is no output at the point of the crash. The only trace that I have been able to find is in /var/log/everything.log, and is as follows:
Oct 15 22:02:45 localhost kernel: [ 243.616368] opera[16250]: segfault at 28 ip 00007fc94a0764ce sp 00007fffff8a1630 error 4 in fglrx-libGL.so.1.2[fc94a03f000+bf000]
Is there any way I can get opera back to running as well as it did before? I have tried removing opera, moving the ~/.opera directory, and reinstalling opera, the results were the same (minus my settings being gone). Any advice would be greatly appreciated.
There hasn't been an opera update in some time. Here's the log of the update that seems to have caused the problem:
[2012-10-14 17:41] Running 'pacman -Syu'
[2012-10-14 17:41] synchronizing package lists
[2012-10-14 17:41] starting full system upgrade
[2012-10-14 17:43] upgraded libtiff (4.0.2-1 -> 4.0.3-1)
[2012-10-14 17:43] upgraded openexr (1.7.0-2 -> 1.7.1-1)
[2012-10-14 17:43] upgraded xorg-server-common (1.12.4-1 -> 1.13.0-2)
[2012-10-14 17:43] warning: /etc/group installed as /etc/group.pacnew
[2012-10-14 17:43] warning: /etc/passwd installed as /etc/passwd.pacnew
[2012-10-14 17:43] warning: /etc/gshadow installed as /etc/gshadow.pacnew
[2012-10-14 17:43] warning: directory permissions differ on srv/http/
filesystem: 775 package: 755
[2012-10-14 17:43] upgraded filesystem (2012.8-1 -> 2012.10-1)
[2012-10-14 17:43] upgraded dbus-core (1.6.4-1 -> 1.6.8-1)
[2012-10-14 17:43] upgraded util-linux (2.22-6 -> 2.22-7)
[2012-10-14 17:43] upgraded systemd (193-1 -> 194-3)
[2012-10-14 17:43] upgraded mtdev (1.1.2-1 -> 1.1.3-1)
[2012-10-14 17:43] upgraded xf86-input-evdev (2.7.3-1 -> 2.7.3-2)
[2012-10-14 17:43] upgraded xorg-server (1.12.4-1 -> 1.13.0-2)
[2012-10-14 17:43] upgraded lib32-gcc-libs (4.7.1-6 -> 4.7.2-1)
[2012-10-14 17:43] upgraded gcc-libs-multilib (4.7.1-6 -> 4.7.2-1)
[2012-10-14 17:43] upgraded catalyst-utils (12.8-1 -> 12.9-0.1)
[2012-10-14 17:43] installed glu (9.0.0-1)
[2012-10-14 17:43] upgraded glew (1.8.0-1 -> 1.8.0-2)
[2012-10-14 17:43] upgraded freeglut (2.8.0-1 -> 2.8.0-2)
[2012-10-14 17:43] upgraded jasper (1.900.1-7 -> 1.900.1-8)
[2012-10-14 17:43] upgraded openimageio (1.0.8-1 -> 1.0.9-3)
[2012-10-14 17:43] upgraded jack (0.121.3-6 -> 0.121.3-7)
[2012-10-14 17:43] installed opencolorio (1.0.7-1)
[2012-10-14 17:43] upgraded blender (4:2.64-3 -> 5:2.64a-1)
[2012-10-14 17:43] upgraded cairo (1.12.2-2 -> 1.12.2-3)
[2012-10-14 17:43] upgraded xcb-proto (1.7.1-1 -> 1.8-1)
[2012-10-14 17:43] upgraded libxcb (1.8.1-1 -> 1.9-1)
[2012-10-14 17:43] upgraded mesa (8.0.4-3 -> 9.0-1)
[2012-10-14 17:43] upgraded cinelerra-cv (1:2.2-7 -> 1:2.2-9)
[2012-10-14 17:43] upgraded curl (7.27.0-1 -> 7.28.0-1)
[2012-10-14 17:43] upgraded dbus (1.6.4-1 -> 1.6.8-1)
[2012-10-14 17:43] upgraded flashplugin (11.2.202.238-1 -> 11.2.202.243-1)
[2012-10-14 17:43] upgraded gcc-multilib (4.7.1-6 -> 4.7.2-1)
[2012-10-14 17:43] upgraded gegl (0.2.0-3 -> 0.2.0-4)
[2012-10-14 17:43] upgraded git (1.7.12.2-1 -> 1.7.12.3-1)
[2012-10-14 17:43] upgraded gnutls (3.1.2-1 -> 3.1.3-1)
[2012-10-14 17:43] upgraded gstreamer0.10-bad (0.10.23-2 -> 0.10.23-3)
[2012-10-14 17:43] installed opus (1.0.1-2)
[2012-10-14 17:43] upgraded gstreamer0.10-bad-plugins (0.10.23-2 -> 0.10.23-3)
[2012-10-14 17:43] upgraded hdparm (9.39-1 -> 9.42-1)
[2012-10-14 17:43] upgraded libltdl (2.4.2-6 -> 2.4.2-7)
[2012-10-14 17:43] upgraded imagemagick (6.7.9.8-1 -> 6.7.9.8-2)
[2012-10-14 17:43] upgraded sysvinit-tools (2.88-8 -> 2.88-9)
[2012-10-14 17:43] warning: /etc/rc.conf installed as /etc/rc.conf.pacnew
[2012-10-14 17:43] ----
[2012-10-14 17:43] > systemd no longer reads MODULES from rc.conf.
[2012-10-14 17:43] ----
[2012-10-14 17:43] upgraded initscripts (2012.09.1-1 -> 2012.10.1-1)
[2012-10-14 17:43] upgraded iputils (20101006-4 -> 20101006-7)
[2012-10-14 17:43] upgraded khrplatform-devel (8.0.4-3 -> 9.0-1)
[2012-10-14 17:43] upgraded lib32-catalyst-utils (12.8-2 -> 12.9-0.1)
[2012-10-14 17:43] upgraded lib32-dbus-core (1.6.4-1 -> 1.6.8-1)
[2012-10-14 17:43] upgraded lib32-libltdl (2.4.2-6 -> 2.4.2-7)
[2012-10-14 17:43] upgraded lib32-libtiff (4.0.2-1 -> 4.0.3-1)
[2012-10-14 17:43] upgraded lib32-libxcb (1.8.1-2 -> 1.9-1)
[2012-10-14 17:43] installed lib32-libxxf86vm (1.1.2-1)
[2012-10-14 17:43] upgraded lib32-mesa (8.0.4-4 -> 9.0-1)
[2012-10-14 17:43] upgraded libbluray (0.2.2-1 -> 0.2.3-1)
[2012-10-14 17:43] upgraded libdmapsharing (2.9.12-2 -> 2.9.15-1)
[2012-10-14 17:43] upgraded libglapi (8.0.4-3 -> 9.0-1)
[2012-10-14 17:43] upgraded libgbm (8.0.4-3 -> 9.0-1)
[2012-10-14 17:43] upgraded libegl (8.0.4-3 -> 9.0-1)
[2012-10-14 17:43] upgraded libgles (8.0.4-3 -> 9.0-1)
[2012-10-14 17:43] upgraded libldap (2.4.32-1 -> 2.4.33-1)
[2012-10-14 17:43] upgraded libreoffice-en-US (3.6.1-4 -> 3.6.2-2)
[2012-10-14 17:44] upgraded libreoffice-common (3.6.1-4 -> 3.6.2-2)
[2012-10-14 17:44] upgraded libreoffice-calc (3.6.1-4 -> 3.6.2-2)
[2012-10-14 17:44] upgraded libreoffice-impress (3.6.1-4 -> 3.6.2-2)
[2012-10-14 17:44] upgraded libreoffice-writer (3.6.1-4 -> 3.6.2-2)
[2012-10-14 17:44] upgraded libshout (1:2.3.0-1 -> 1:2.3.1-1)
[2012-10-14 17:44] upgraded libtool-multilib (2.4.2-6 -> 2.4.2-7)
[2012-10-14 17:44] upgraded libusbx (1.0.12-2 -> 1.0.14-1)
[2012-10-14 17:44] upgraded libva (1.1.0-1 -> 1.1.0-2)
[2012-10-14 17:44] >>> Updating module dependencies. Please wait ...
[2012-10-14 17:44] >>> Generating initial ramdisk, using mkinitcpio. Please wait...
[2012-10-14 17:44] ==> Building image from preset: 'default'
[2012-10-14 17:44] -> -k /boot/vmlinuz-linux -c /etc/mkinitcpio.conf -g /boot/initramfs-linux.img
[2012-10-14 17:44] ==> Starting build: 3.5.6-1-ARCH
[2012-10-14 17:44] -> Running build hook: [base]
[2012-10-14 17:44] -> Running build hook: [udev]
[2012-10-14 17:44] -> Running build hook: [autodetect]
[2012-10-14 17:44] -> Running build hook: [pata]
[2012-10-14 17:44] -> Running build hook: [scsi]
[2012-10-14 17:44] -> Running build hook: [sata]
[2012-10-14 17:44] -> Running build hook: [filesystems]
[2012-10-14 17:44] -> Running build hook: [usbinput]
[2012-10-14 17:44] -> Running build hook: [fsck]
[2012-10-14 17:44] ==> Generating module dependencies
[2012-10-14 17:44] ==> Creating gzip initcpio image: /boot/initramfs-linux.img
[2012-10-14 17:44] ==> Image generation successful
[2012-10-14 17:44] ==> Building image from preset: 'fallback'
[2012-10-14 17:44] -> -k /boot/vmlinuz-linux -c /etc/mkinitcpio.conf -g /boot/initramfs-linux-fallback.img -S autodetect
[2012-10-14 17:44] ==> Starting build: 3.5.6-1-ARCH
[2012-10-14 17:44] -> Running build hook: [base]
[2012-10-14 17:44] -> Running build hook: [udev]
[2012-10-14 17:44] -> Running build hook: [pata]
[2012-10-14 17:44] -> Running build hook: [scsi]
[2012-10-14 17:44] -> Running build hook: [sata]
[2012-10-14 17:44] -> Running build hook: [filesystems]
[2012-10-14 17:44] -> Running build hook: [usbinput]
[2012-10-14 17:44] -> Running build hook: [fsck]
[2012-10-14 17:44] ==> Generating module dependencies
[2012-10-14 17:44] ==> Creating gzip initcpio image: /boot/initramfs-linux-fallback.img
[2012-10-14 17:44] ==> Image generation successful
[2012-10-14 17:44] upgraded linux (3.5.4-1 -> 3.5.6-1)
[2012-10-14 17:44] upgraded linux-api-headers (3.5.1-1 -> 3.5.5-1)
[2012-10-14 17:44] upgraded lirc-utils (1:0.9.0-28 -> 1:0.9.0-30)
[2012-10-14 17:44] upgraded net-snmp (5.7.1-3 -> 5.7.1-4)
[2012-10-14 17:44] upgraded nodejs (0.8.11-1 -> 0.8.12-1)
[2012-10-14 17:44] upgraded xine-lib (1.2.2-1 -> 1.2.2-2)
[2012-10-14 17:44] upgraded opencv (2.4.2-2 -> 2.4.2-4)
[2012-10-14 17:44] upgraded rsync (3.0.9-4 -> 3.0.9-5)
[2012-10-14 17:44] upgraded run-parts (4.3.2-1 -> 4.3.4-1)
[2012-10-14 17:44] upgraded smpeg (0.4.4-6 -> 0.4.4-7)
[2012-10-14 17:44] upgraded sqlite (3.7.14-1 -> 3.7.14.1-1)
[2012-10-14 17:44] upgraded sysvinit (2.88-8 -> 2.88-9)
[2012-10-14 17:44] In order to use the new version, reload all virtualbox modules manually.
[2012-10-14 17:44] upgraded virtualbox-host-modules (4.2.0-2 -> 4.2.0-5)
[2012-10-14 17:44] installed lib32-glu (9.0.0-1)
[2012-10-14 17:44] upgraded wine (1.5.14-1 -> 1.5.15-1)
[2012-10-14 17:44] upgraded xbmc (11.0-6 -> 11.0-8)
[2012-10-14 17:44] upgraded xf86-input-wacom (0.17.0-1 -> 0.17.0-2)
[2012-10-14 17:44] upgraded xorg-server-xephyr (1.12.4-1 -> 1.13.0-2)
[2012-10-14 17:44] upgraded xscreensaver (5.19-1 -> 5.19-2)
[2012-10-14 17:44] upgraded xterm (282-1 -> 283-1)
Finally, here is a list of the packages that were removed in the pacman invocation that removed linux-headers.
[2012-10-07 11:28] Running 'pacman -R torus-trooper'
[2012-10-07 11:28] removed torus-trooper (0.22-4)
[2012-10-07 11:28] Running 'pacman -R freealut lib32-alsa-lib lib32-curl lib32-libglapi lib32-libidn lib32-libxxf86vm lib32-nvidia-cg-toolkit lib32-sdl libbulletml linux-headers mono xclip'
[2012-10-07 11:28] removed xclip (0.12-3)
[2012-10-07 11:28] removed mono (2.10.8-1)
[2012-10-07 11:28] removed linux-headers (3.5.4-1)
[2012-10-07 11:28] removed libbulletml (0.0.6-4)
[2012-10-07 11:28] removed lib32-sdl (1.2.15-3)
[2012-10-07 11:28] removed lib32-nvidia-cg-toolkit (3.1-2)
[2012-10-07 11:28] removed lib32-libxxf86vm (1.1.2-1)
[2012-10-07 11:28] removed lib32-libidn (1.25-1)
[2012-10-07 11:28] removed lib32-libglapi (8.0.4-4)
[2012-10-07 11:28] removed lib32-curl (7.27.0-1)
[2012-10-07 11:28] removed lib32-alsa-lib (1.0.26-1)
[2012-10-07 11:28] removed freealut (1.1.0-4)
[2012-10-07 11:28] Running 'pacman -R lib32-libssh2 libgdiplus'
[2012-10-07 11:28] removed libgdiplus (2.10-2)
[2012-10-07 11:28] removed lib32-libssh2 (1.4.2-1)
The system in question is a Dell XPS, with an i7 processor and an ATI Radeon HD5700 series graphics card. I'm using slim and awesome wm, and the arch install is now seven months old.
I know that we're supposed to post entire logs, but I'm not sure which logs are actually relevant, and my logs are quite large. I can definitely provide more information, if it's helpful. I've done some looking around on the wiki, and on google in general. I haven't found anything useful, but it could always be that I'm just phrasing my searches poorly.
Thanks!
I reinstalled the whole system. As said, I couldn't even go to tty. I know using installation disk I could have recovered it, but I decided to reinstall.
Similar Messages
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Performance degradation after setting filesystemio_option=setall from none.
Hi All,
We have facing performance degradation after setting filesystemio_option=setall from none on my two servers as mentioned below.
Red Hat Enterprise Linux AS release 4 (Nahant Update 7) 2.6.9 55.ELhugemem (32-bit)
Red Hat Enterprise Linux Server release 5.2 (Tikanga) 2.6.18 92.1.10.el5 (64-bit)
We are seeing lots of Disk I/O happening. We expected "*filesystemio_option=setall* " will improve performance but it is degrading. We getting slowness complains.
Please let me know do we need to set somethign else along with this ...like any otimizer parameter( e.g. optimizer_index_cost_adj, optimizer_index_caching).
Please help.Hi Suraj,
<speculation>
You switched filesystemio_options to setall from none, so, the most likely reason for performance degradation after switching to setall is the implementation of directio. Direct I/O will skip the filesystem buffer cache, and and allow Oracle to read directly from disk to the database buffer cache. However, on a system where direct I/O is not implemented, which is what you had until you recently messed with that parameter, it's likely that you had an undersized database buffer cache, but that was ok, because many (most) of the physical I/Os your database was doing, were actually being serviced by the O/S filesystem buffer cache. But, you introduced direct I/O, and wiped out the ability of the O/S to service any physical I/Os from filesystem buffer cache. This means that every cache miss on the database buffer cache, turns into a real, physical, spin-the-disk, move-the-drive-head, physical I/O. And, you are suffering the performance consequences.
</speculation>
Ok, end of speculation. Now, assuming that what I've outlined above is actually going on, what to do? Why is direct I/O lower performing than buffered, non-direct I/O? Shouldn't it's performance be superior?
Well, when you have an established system that's using buffered I/O, and you switch to direct I/O, you almost always will have to increase the size of the database buffer cache. The problem is that you took a huge chunk of memory away from the the O/S, that it was using to buffer your I/Os and avoid physical I/O. So, now, you need to make up for it, by increasing the size of the database buffer cache. You can do this, without buying more memory for the box, because the O/S is no longer going to need to use so much memory for filesystem buffers.
So, what to do? Is it worth switching? Well, on balance, it makes sense to use direct I/O, and give Oracle a larger database buffer cache, for the simple fact that (particularly on a server that's dedicated to being an Oracle database server), Oracle has far more sophisticated caching algorithms, and a better understanding of the various types of data being cached, and so should be able to make more efficient use of the memory, than the (relatively) brain dead caching algorithms of the kernel and filesystem mechanisms.
But, once again, it all comes down to this:
What problem are you trying to solve? Did you have any I/O related issues? Do you have any compelling reason to implement direct I/O? Rule #1 is "if it ain't broke, don't fix it." Did you just violate rule #1? :-)
Finally, since you're on Linux, you can use the 'free' command to see how much memory is on the box, how much is free, and how much is dedicated to filesystem cache buffers. This response is already pretty long, so, I'm not going to get into details, however, if you're not familiar with the command, the results could be misleading. Read the man page, and try to be clear about understanding it before you make any assumptions about the output.
Hope that helps,
-Mark -
System performance degrades after server migration ???
Hi Friends,
System performance degrades after we migrate our BW 3.5 Server (Production) from UK to Germany.
for details :
1. Data is coming to Informatica server from Informatica its going to POSDM Server (Point of Sales Data Management) from POSDM we are running pipes and data is coming to BW (Delta Queqe)
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Please help out to find the reason for this.
Note : Server Ram , Hard Disk , Speed is same on both Servers
Thanks
AsimNote : Server Ram , Hard Disk , Speed is same on both Servers
Are you cahnge any application or database parameter (the OS and all patch'es are the same?)
How you doing migration? Very low information... Are you check the network configuration are the same( for example check the network speed 1G or 100MB).
Are you trying to analyse the St03N and St04 t-codes?
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Performance Degradation - High fetches and Prses
Hello,
My analysis on a particular job trace file drew my attention towards:
1) High rate of Parses instead of Bind variables usage.
2) High fetches and poor number/ low number of rows being processed
Please let me kno as to how the performance degradation can be minimised, Perhaps the high number of SQL* Net Client wait events may be due to multiple fetches and transactions with the client.
EXPLAIN PLAN FOR SELECT /*+ FIRST_ROWS (1) */ * FROM SAPNXP.INOB
WHERE MANDT = :A0
AND KLART = :A1
AND OBTAB = :A2
AND OBJEK LIKE :A3 AND ROWNUM <= :A4;
call count cpu elapsed disk query current rows
Parse 119 0.00 0.00 0 0 0 0
Execute 239 0.16 0.13 0 0 0 0
Fetch 239 2069.31 2127.88 0 13738804 0 0
total 597 2069.47 2128.01 0 13738804 0 0
PLAN_TABLE_OUTPUT
Plan hash value: 1235313998
| Id | Operation | Name | Rows | Bytes | Cost (%CPU)| Time |
| 0 | SELECT STATEMENT | | 2 | 268 | 1 (0)| 00:00:01 |
|* 1 | COUNT STOPKEY | | | | | |
|* 2 | TABLE ACCESS BY INDEX ROWID| INOB | 2 | 268 | 1 (0)| 00:00:01 |
|* 3 | INDEX SKIP SCAN | INOB~2 | 7514 | | 1 (0)| 00:00:01 |
Predicate Information (identified by operation id):
1 - filter(ROWNUM<=TO_NUMBER(:A4))
2 - filter("OBJEK" LIKE :A3 AND "KLART"=:A1)
3 - access("MANDT"=:A0 AND "OBTAB"=:A2)
filter("OBTAB"=:A2)
18 rows selected.
SQL> SELECT INDEX_NAME,TABLE_NAME,COLUMN_NAME FROM DBA_IND_COLUMNS WHERE INDEX_OWNER='SAPNXP' AND INDEX_NAME='INOB~2';
INDEX_NAME TABLE_NAME COLUMN_NAME
INOB~2 INOB MANDT
INOB~2 INOB CLINT
INOB~2 INOB OBTAB
Is it possible to Maximise the rows/fetch
call count cpu elapsed disk query current rows
Parse 163 0.03 0.00 0 0 0 0
Execute 163 0.01 0.03 0 0 0 0
Fetch 174899 55.26 59.14 0 1387649 0 4718932
total 175225 55.30 59.19 0 1387649 0 4718932
Misses in library cache during parse: 0
Optimizer mode: ALL_ROWS
Parsing user id: 27
Rows Row Source Operation
28952 TABLE ACCESS BY INDEX ROWID EDIDC (cr=8505 pr=0 pw=0 time=202797 us)
28952 INDEX RANGE SCAN EDIDC~1 (cr=1457 pr=0 pw=0 time=29112 us)(object id 202995)
Elapsed times include waiting on following events:
Event waited on Times Max. Wait Total Waited
---------------------------------------- Waited ---------- ------------
SQL*Net message to client 174899 0.00 0.16
SQL*Net more data to client 155767 0.01 5.69
SQL*Net message from client 174899 0.11 208.21
latch: cache buffers chains 2 0.00 0.00
latch free 4 0.00 0.00
********************************************************************************user4566776 wrote:
My analysis on a particular job trace file drew my attention towards:
1) High rate of Parses instead of Bind variables usage.
But if you look at the text you are using bind variables.
The first query is executed 239 times - which matches the 239 fetches. You cut off some of the useful information from the tkprof output, but the figures show that you're executing more than once per parse call. The time is CPU time spent using a bad execution plan to find no data -- this looks like a bad choice of index, possibly a side effect of the first_rows(1) hint.
2) High fetches and poor number/ low number of rows being processedThe second query is doing a lot of fetches because in 163 executions it is fetching 4.7 million rows at roughly 25 rows per fetch. You might improve performance a little by increasing the array fetch size - but probably not by more than a factor of 2.
You'll notice that even though you record 163 parse calls for the second statement the number of " Misses in library cache during parse" is zero - so the parse calls are pretty irrelevant, the cursor is being re-used.
Regards
Jonathan Lewis
http://jonathanlewis.wordpress.com
http://www.jlcomp.demon.co.uk
To post code, statspack/AWR report, execution plans or trace files, start and end the section with the tag {noformat}{noformat} (lowercase, curly brackets, no spaces) so that the text appears in fixed format.
"Science is more than a body of knowledge; it is a way of thinking"
Carl Sagan -
Performance degradation after upgrading to yosemite
I'm experiencing performance degradation on MacBook Pro 15 including
number of spinning wheels,
instance of dark screen,
overheating after upgrading to Yosemite
diminished battery life
Is Yosemite the cause of this and other issuesI can't believe Apple have made this software available to the masses when it's clearly not ready. Since "upgrading" my Mac mini has been pretty useless. Programs take a substantially increased time to open compared to Mavericks, and then performance is poor at best. Opening files in Photoshop, for example, is painfully slow and I get the colour wheel almost all of the time - something which definitely didn't happen with Mavericks.
Aside from this, I've experienced a number of frustrating bugs today. When I open a new program on my left screen the right screen is changed to a fresh desktop. Why? When I turn my Mac on I get the login screen on the left monitor (as it always used to) but then the primary desktop is set to the right and I've been unable to keep the correct setting so far (it forgets that I've changed it following a reboot). The background of the top bar keeps disappearing so all of the icons, time, etc. just sit on top of the desktop background.
I hope Apple can release a fix, and quickly. -
Performance degradation after SP 24 installation
Hi,
Our SAP BI systems are upgraded to service pack 24. After this, we see a lot of performance degradation. (Process chains are taking time to complete in BI)
Can anybody please suggest which note to apply to avoid this?
Thx in advance.
- V Sudhakar
Edited by: sudhakar.agollu on Mar 31, 2011 12:29 AM
Edited by: sudhakar.agollu on Mar 31, 2011 12:30 AM
Edited by: sudhakar.agollu on Mar 31, 2011 12:31 AM
Edited by: sudhakar.agollu on Apr 1, 2011 3:01 AMHi,
Regenerate after sap system upgrade.
Run t code SGEN
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klaees -
Severe performance degradation after update/clean install of 10.10 Yosemite
Hello, Apple Community.
I am submitting this general complaint in the name of myself and of my friend. We both have rather fresh MacBooks (15" Early 2014 with 2,5 GHz Core i7 and Late 2013 with 2,3 GHz Core i7, both with GeForce 750M as dedicated GPU).
I decided to upgrade my (flawlessly running) Mavericks while my friend performed the clean install.
Now we both experience serious performance degradation (in comparison to 10.9), visible especially in very low framerate of most of system UI animations (the worst are: showing/hiding mission control, switching spaces, displaying/hiding folder stacks - but the simple ones like magnifying the dock tend to stutter as well).
Beside that, there are many fades (like the one between the login screen and the desktop or the one between the main screen of system preferences overview and particular settings panes) that often get distorted - it seems to be the issue connected with retina scaling (I am using the 1920x1200 mode), since both login screen and settings seem to be showing some parts of UI improperly magnified or zoomed that suddenly "skip" to their adequate proportions.
Summing up - I am really unhappy with my initial 10.10 experiences, especially since I used to consider my hardware rather hi-end - the worst thing being that Yosemite runs on my friend's 2012 Mac Mini flawlessly.
Do any of you guys experience the same issues with 10.10 and your rMBPs? Maybe just those of us with dedicated graphics?Hello Richard:
As a side note, there is no such thing as a +"clean install."+ Apple changed that terminology to +"erase and install"+ several years ago.
I am not sure if what you describe would work. Unless the new owner does not have broadband service, there is no reason why they cannot install your version of OS X 10.5 and then run software update when they get the system. I vaguely recall that when one does an erase and install the system prompts for passwords, etc at that time.
I think I would erase the HD and then let the new owner go from there.
Barry -
Performance degrades after stats collection
Oracle 11gR2 OEL 5
We have several very large tables (40 million rows and up) and recently we gathered stats on the tables and it degraded our performance. It started doing full table scans instead of using the indexes. The same queries are fine in other environments. Only difference is the stats gathering. Logically, the performance should be better after stats collection. But instead it is poor.
I ran the 10053 trace on the query and I see that the cardinality and cost is way high in the poorly performing environment. As a test, I restored the old stats in the environment and it put everything back to normal - the query runs fast again. Note that the restored stats were gathered over a year ago. Should we not gather stats regularly on very large tables?
Thanks.I will have to look more into the GATHER_STATS job.
In the meantime, here is the query with both the good and bad explain plans.
I'm sure you can see the difference in cost and cardinality
Good (Original) Query Explain Plan
SELECT DL.LCODE , DL.CNUM , DR.DNAME , STPL.FSTE
FROM DL , DR_LK , DR , STPL
WHERE ( DL.LCODE = DR_LK.LCODE )
AND ( DL.CNUM = DR_LK.CNUM )
AND ( CCDT_LK.DBTR_ID = DR.DBTR_ID )
AND ( DL.LCODE = STPL.LCODE )
AND ( DL.CNUM = STPL.CNUM )
AND ( ( DL.DT_ID = :dt_id )
AND ( DL.DT_TPE = :dt_tpe )
AND ( DR_LK.RLTP = '80' )
AND ( STPL.IND = 'T' ) )
============
Plan Table
============
-----------------------------------------------------------------+-----------------------------------+
| Id | Operation | Name | Rows | Bytes | Cost | Time |
-----------------------------------------------------------------+-----------------------------------+
| 0 | SELECT STATEMENT | | | | 12 | |
| 1 | NESTED LOOPS | | | | | |
| 2 | NESTED LOOPS | | 16K | 2210K | 12 | 00:00:01 |
| 3 | NESTED LOOPS | | 1 | 102 | 9 | 00:00:01 |
| 4 | NESTED LOOPS | | 1 | 65 | 7 | 00:00:01 |
| 5 | TABLE ACCESS BY INDEX ROWID | CDL | 1 | 32 | 4 | 00:00:01 |
| 6 | INDEX RANGE SCAN | XI1_CDL | 1 | | 3 | 00:00:01 |
| 7 | TABLE ACCESS BY INDEX ROWID | CDR_LK | 2 | 48 | 3 | 00:00:01 |
| 8 | INDEX RANGE SCAN | PKEY_21 | 1 | | 2 | 00:00:01 |
| 9 | TABLE ACCESS BY INDEX ROWID | CDR | 1 | 21 | 2 | 00:00:01 |
| 10 | INDEX UNIQUE SCAN | CDR_4398287791 | 1 | | 1 | 00:00:01 |
| 11 | INDEX RANGE SCAN | XIE1_C_PL | 1 | | 2 | 00:00:01 |
| 12 | TABLE ACCESS BY INDEX ROWID | C_PL | 2568K | 77M | 3 | 00:00:01 |
-----------------------------------------------------------------+-----------------------------------+
The bad (after gathering stats) Query Explain Plan
============
Plan Table
============
------------------------------------------------------------------+-----------------------------------+
| Id | Operation | Name | Rows | Bytes | Cost | Time |
------------------------------------------------------------------+-----------------------------------+
| 0 | SELECT STATEMENT | | | | 58K | |
| 1 | NESTED LOOPS | | | | | |
| 2 | NESTED LOOPS | | 30G | 5864G | 58K | 00:10:17 |
| 3 | HASH JOIN | | 11K | 1253K | 16K | 00:03:06 |
| 4 | NESTED LOOPS | | | | | |
| 5 | NESTED LOOPS | | 11K | 890K | 7 | 00:00:01 |
| 6 | TABLE ACCESS BY INDEX ROWID | CL | 1 | 42 | 4 | 00:00:01 |
| 7 | INDEX RANGE SCAN | XI1_CL | 1 | | 3 | 00:00:01 |
| 8 | INDEX RANGE SCAN | PKEY_31 | 1 | | 2 | 00:00:01 |
| 9 | TABLE ACCESS BY INDEX ROWID | C_LK | 3432K | 115M | 3 | 00:00:01 |
| 10 | TABLE ACCESS FULL | CDR | 3614K | 115M | 16K | 00:03:06 |
| 11 | INDEX RANGE SCAN | XI1_C_PL | 1 | | 2 | 00:00:01 |
| 12 | TABLE ACCESS BY INDEX ROWID | C_PL | 3465K | 88M | 3 | 00:00:01 |
------------------------------------------------------------------+-----------------------------------+ -
OpenGL performance degradation after sleep
On 8 core Mac Pro early 2008 with Radeon HD 5770 I'm witnessing OpenGL performace severly drops after I woke computer from sleep. So far, I've seen it in every OpenGL application I have.
Filed a bug report to Apple about this (9828111).
The question is: does anyone else experience similar problems?I have an Apple 30" Cinema HD display connected to a Radeon HD 5870 1GB in a MacPro3,1 running Mountain Lion. There are threads here that say changing the screen resolution will fix the problem. Changing the screen resolution did not restore OpenGL performance for me after waking from sleep.
I figured that if changing resolutions is supposed to fix the problem, then perhaps the thing the fixes the problem is that the Radeon timings (pixel clock) are altered/recalculated/reset/whatever whenever the resolution changes.
But all the resolutions for the LCD display are scaled resolutions which means the Radeon is always outputing 2560x1600. The framebuffer is of different sizes but the output timings are unchanged.
Therefore, the solution might be to create a custom resolution (using something like SwitchResX) which is not a scaled resolution. The EDID of the Cinema HD display says it supports 1280 x 800 @ 59.910Hz and 2560 x 1600 @ 59.860Hz. I used SwitchResX to add a 1280 x 800 @ 59.910Hz non-scaled resolution and restarted the Mac.
Now when I wake the Mac from sleep, I can use that 1280 x 800 non-scaled resolution to restore OpenGL performance. It works.
Note that the Apple graphics drivers will not allow both a scaled and non-scaled version of the same resolution. When I add the non-scaled 1280 x 800, I can nolonger use the scaled 1280 x 800. The difference between 1280 x 800 scaled and non-scaled is that for scaled, the graphics card does the scaling and adds filtering to the pixels making them blurry and outputs 2560 x 1600. Non-scaled outputs 1280 x 800 and the Cinema HD itself quadruples the pixels to 2560 x 1600 without filtering (making them very sharp and crisp). -
IPhone 3G performance degrades after update to iOS4
Another log on the fire - for the first time since I bought my iPhone 3G I am unhappy with it. Not only did the update to iOS4 significantly degrade the performance/responsiveness of my iPhone, but I also have no backup to revert back to. The update process within iTunes performed a backup of my phone before the iOS4 update, and after the update was completed (4-6 hours later) the backup of 3.1.3 was gone.
I have to agree with pego19.
I UNFORTUNATE was foolish enough to install iOS 4 on my iPhone 3G. Now I feel it is totally unusable due to slowness and crashing. I've actually had mail and SMS apps crash on me, as well as the whole phone to freeze forcing me to reset it. Something I cannot recall ever doing in the the 20 months of owning it.
I am desperately trying to search ways to return to iOS 3, or preferrably iOS 2 (that it came with), as that was FAST. If that is not possible, I will have just forget about the iPhone and look for an alternative. I'm definately not going to buy a new iPhone, as this is more likely to happen again with it.
What I don't undestand why I cannot just put the original iOS back to the phone that it came out with. Just as I can always restore any Mac to the original condition that it came in?
And yes, my iPhone has never been jailbroken. It has always been unlocked by Apple since new (bought it while living in Brussels), so I have never needed to bother tinkering with it. -
Db performance degradation after upgrading a VM from EL 4.7 to EL 4.8
Hi,
We performed an OEL4.7 to OEL4.8 migration for a vm; we did not upgrade the dom0.
Here is the config data:
vm:
OLDl:
OEL4.7
2.6.9-78.0.13.0.1.ELsmp 64bit
HVM
NEW:
OEL4.8
2.6.9-89.0.23.0.1.ELsmp, 64bit
HVM
dom0(unchanged):
OVM 2.1.2, 2.6.18-8.1.15.1.31.el5xen
DB version:
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit
No init param changes!!!
After the migration, the only kernel params that have changed, are below:
Kernel settings. 4.8 4.7
kernel.shmmax 4398045611104 12884901888
kernel.shmall 1073741824 3145728
sunrpc.tcp_slot_table_entries 16 32
net.ipv4.ip_local_port_range 9000 65500 1024 65000
fs.file-max 6815744 270336
Problem:
The application response time increased by 100%, and the most heavy queries, after running the load
test and the ASH report, deal with "CPU+wait for CPU" event.
Unfortunately, I don't have the explain plan of these queries before the OS migration so I can identify
the impact on the exec plan.
So far, I have not been able to determine the cause of this problem and I really appreciate some help at this
point.
Thank you.What's a MT client? How to read your kernel parameters, 1st 4.7, 2nd 4.8?
Looking at your kernel parameters... is there some typo? I think the values don't make much sense, e.g. shared memory segment 4 TB -> 12 GB? Either way this looks very strange to me. Same for fs.file-max, etc. I'm not sure if setting shared memory segment to more than 4 GB is actually supported. Where did you get these parameters?
http://www.oracle.com/technology/pub/articles/smiley_10gdb_install.html#kernel
I would also verifiy your shell ulimits.
Edited by: Markus Waldorf on Jul 23, 2010 5:58 PM
Just noticed your kernel parameter are 4.8 <- 4.7. Anyway, I wonder what value will actually be used if you set shared memory to 4 TB, but you can probably verify with
/sbin/sysctl -a | grep kernel.shmmax
Edited by: Markus Waldorf on Jul 23, 2010 6:15 PM
The following values are probably more common. Shared max is 2 GB.
kernel.shmall = 2097152
kernel.shmmax = 2147483648
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
fs.file-max = 65536
net.ipv4.ip_local_port_range = 1024 65000
net.core.rmem_default = 262144
net.core.rmem_max = 262144
net.core.wmem_default = 262144
net.core.wmem_max = 262144
Next, edit your “/etc/security/limits.conf” file, adding the following lines:
oracle soft nproc 2047
oracle hard nproc 16384
oracle soft nofile 1024
oracle hard nofile 65536
If your current “/etc/pam.d/login” file does not already contain the following line, add it:
session required pam_limits.so
Finally, add the following lines to your "/etc/profile" file:
#Tweaks for Oracle
if [ $USER = "oracle" ]; then
if [ $SHELL = "/bin/ksh" ]; then
ulimit -p 16384
ulimit -n 65536
else
ulimit -u 16384 -n 65536
fi
fi -
Significant performance degradation after TM restore
I recently installed a new internal HD in my iMac. While everything seems to work from a hardware standpoint, the performance has significantly degraded. Specifically, the screen locks up from time to time for several seconds.
I think I have isolated this problem to one user profile and it seems to occur when mail or iphoto are running (which makes me suspect something to do with the synching of one of the ipods or iphone associated with the machine.
I initially restored the entire system from a TM backup - once with the most recent backup and a second time with a slightly earlier back up but had the same performance drag. I then reinstalled Leopard and most of my programs with relevant updates. I didn't experience any hang ups (freezing screen, colorful spinning circle, etc.) until I restored the user accounts from TM.
It seems that the hang ups are only happening on one account (mine) as I haven't been able to replicate the problem with the other profiles (which do not have mail installed and are not associated with any ipod or iphone).
Any ideas about what may be "corrupting" my profile. I have run verify disk permissions and verify disk and no problems were reported (I even ran repair disk permissions for grins with no result).
Thanks and sorry for the long post.Kaubon,
There is a difference between oracle 9i and 10g database.
If you are using optimizer_features_enable="9.2.0.8" to revert back to the old behavior then you are not utilizing the updated feature of 10g. You are making 10g to follow 9i behavior.
It is just like buying a new car and damaging it to get the feel of your old car.
We had the similar problem, but we fine tune all our queries according to 10g. Main problem was use of rules. You need to either remove those rules or modify those rules.
There are few good documents of 10g performance on metalink. You can refer to that.
All the best.
Soham khot
http://oracleappshr.blogspot.com -
DHCP client does not work poperly after systemd and Gnome 3.6 upgrade
Upgraded my system today from Gnome 3.4 to 3.6 (and systemd was updated as well), and since then acquiring an IP address using DHCP does not work anymore.
I am using IPv4 only internally, but neither dhclient or dhcpcd manages to get an IPv4 address.
It seems like IPv6 is priority one, and beacuse there is no IPv6 DHCP server available NetworkManager aborts the whole setup process.
To make sure that IPv6 should not be considered, I have changed "method" in NetworkManager to "Ignore" for IPv6.
I have also tried to downgrade NM to 0.9.6.0 from 0.9.6.4 (since that version works on another, not upgraded, machine), without any result.
Also switched dhclient to dhcpcd, without any result.
The machine is a "pure" systemd machine.
DHCP works for other devices in the network.
Versions:
systemd 195-2
NetworkManager 0.9.6.4
isc-dhclient-4.2.3-P2
I have no issues on a system where following versions are running:
systemd 189-4
NetworkManager 0.9.6.0
dhcpcd 5.6.2
Log: http://pastebin.com/2wMC0JLeThink I have identified the issue now.
Neither dhcpcd or dhclient is sending the host name properly to the DHCP server anymore. I had an IP address reserved in the DHCP server for my host and after deleting this reservation my host is able to acquire an IP (dynamic) address. The reserved static address could never be acquired.
Conclusion: dhclient and dhcpcd is not sending the host name as before, causing the DHCP server to get stuck (while waiting for the host name) whenever a NIC with a reserved IP address is requesting an IP address.
Downgrading the dhcp clients has not yet worked, so there might be some underlying component that is causing the problem. ath5k? systemd? -
Performance degradation after migration from 2.3 to 3.1
We are in process of migrating from 2.3 to 3.1 and we have seen that application in 3.1 in studio takes 4-5 mins to load and often crashes.
- Records in Data domain ~ 1 million
- 100+ Views
- Since we were migrating from 2.3 to 3.1, we kept it in one collection
- most of the charts are powered by views
studio log and data domain log are not showing any errors or warnings.
any pointers as where I should be looking at to identify the problem?
regardsDid this recommendations helped you to resolve your performance issues ?
Hi Thiago-Pereira-Oracle
We have a similar upgrade from 2.2 to 3.1 where we are struggling to achieve the desired performance .
1. there were applications with > 700 views and we consolidated to bring it down to 400 views
2. there is difference in performance with single dataset vs multiple dataset [7] (this approach was taken due to guided navigation issues using single dataset, where unselected refinements records were also displayed]
3. Volume of records are not very high
4. Can we get more details on the 3.1 studio hot fix /patch details that can resolve these issues?
5. There are customized chart components in 2.2 (with dropdown) which are not supported in 3.1 , as a result , we are creating separate views to handle different dropdown values.
6. We enabled cache warming - it helped our cause but still the response times are higher than 2.2. -
Performance Degradation after implementing SQLNET encryption
Hello Everyone...
We are in the process of implementing SQLNET encryption.
As apart of POC.. we were performing test runs.. our appdev person noticed 3x degradation while retriving "CLOB" data over sqlnet encryption.
Here are the current sqlnet settings...
## SQLNET ENCRYPTION DETAILS
#SQLNET.ENCRYPTION_SERVER = required
#SQLNET.CRYPTO_SEED = 'ksfksoiewns324ssfahne'
#SQLNET.ENCRYPTION_TYPES_SERVER= (AES256,AES192)
#SQLNET.CRYPTO_CHECKSUM_SERVER = required
#SQLNET.CRYPTO_CHECKSUM_TYPES_SERVER = (MD5)
, I see about 3x slower performance when looping over clobs when sqlnet encryption is on in CBTS environment. I ran the test from usoh2sxutl001 connecting to shoppingasmstg-scan.cxloyalty.com:1521:shopping using a standalone java test. Each iteration loops over 1000 rows with clobs returning a total of 1343833 bytes; total time for 10 iterations was 3290 ms with encryption on while 1035 ms with it off. The performance for just looping over strings with only 7004 bytes was fine.
usoh2sxutl001:/home/gfishman> /opt/web/jdk/bin/java -classpath ./test/ojdbc5.jar:./test/classes12.jar:./test/:. SqlNetPerformanceTest 10 OFFER_ID
usoh2sxutl001:/home/gfishman> /opt/web/jdk/bin/java -classpath ./test/ojdbc5.jar:./test/classes12.jar:./test/:. SqlNetPerformanceTest 10 DISCLAIMER
From utility box:
No SQLNET:
Prepared statement and executed query in 13 for select OFFER_ID from cata_ag.xtend_offer where disclaimer is not null and length(disclaimer)>1000 and rownum<=1000
Looped over results in 61 with total size 7004
Total time for iterations 10: 3088
Total resultset looping time for iterations 10: 593
usoh2sxutl001:/home/gfishman>
Prepared statement and executed query in 10 for select DISCLAIMER from cata_ag.xtend_offer where disclaimer is not null and length(disclaimer)>1000 and rownum<=1000
Looped over results in 100 with total size 1343833
Total time for iterations 10: 3485
Total resultset looping time for iterations 10: 1035
usoh2sxutl001:/home/gfishman>
SQLNET:
Prepared statement and executed query in 10 for select OFFER_ID from cata_ag.xtend_offer where disclaimer is not null and length(disclaimer)>1000 and rownum<=1000
Looped over results in 57 with total size 7004
Total time for iterations 10: 4710
Total resultset looping time for iterations 10: 580
Prepared statement and executed query in 11 for select DISCLAIMER from cata_ag.xtend_offer where disclaimer is not null and length(disclaimer)>1000 and rownum<=1000
Looped over results in 194 with total size 1343833
Total time for iterations 10: 6072
Total resultset looping time for iterations 10: 3290
usoh2sxutl001:/home/gfishman>
Can you please advise if there is something wrong with the sqlnet settings or what can be done to get the performance back to normal?
Thanks,
Raghu Yella1. What is DB version?
2. What OS do you use?
3. What was the CPU load during nosqlnet and sqlnet phases?
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