XML select query causing very high CPU usage.
Hi All,
In our Oracle 10.2.0.4 Two node RAC we are facing very high CPU usage....and all of the top CPU consuming processes are executing this below sql...also these statements are waiting for some gc wiat events as shown below.
SELECT B.PACKET_ID FROM CM_PACKET_ALT_KEY B, CM_ALT_KEY_TYPE C, TABLE(XMLSEQUENCE ( EXTRACT (:B1 , '/AlternateKeys/AlternateKey') )) T
WHERE B.ALT_KEY_TYPE_ID = C.ALT_KEY_TYPE_ID AND C.ALT_KEY_TYPE_NAME = EXTRACTVALUE (VALUE (T), '/AlternateKey/@keyType')
AND B.ALT_KEY_VALUE = EXTRACTVALUE (VALUE (T), '/AlternateKey')
AND NVL (B.CHILD_BROKER_CODE, '6209870F57C254D6E04400306E4A78B0') =
NVL (EXTRACTVALUE (VALUE (T), '/AlternateKey/@broker'), '6209870F57C254D6E04400306E4A78B0')
SQL> select sid,event,state from gv$session where state='WAITING' and event not like '%SQL*Net%';
SID EVENT STATE
66 jobq slave wait WAITING
124 gc buffer busy WAITING
143 gc buffer busy WAITING
147 db file sequential read WAITING
222 Streams AQ: qmn slave idle wait WAITING
266 gc buffer busy WAITING
280 gc buffer busy WAITING
314 gc cr request WAITING
317 gc buffer busy WAITING
392 gc buffer busy WAITING
428 gc buffer busy WAITING
471 gc buffer busy WAITING
518 Streams AQ: waiting for time management or cleanup tasks WAITING
524 Streams AQ: qmn coordinator idle wait WAITING
527 rdbms ipc message WAITING
528 rdbms ipc message WAITING
532 rdbms ipc message WAITING
537 rdbms ipc message WAITING
538 rdbms ipc message WAITING
539 rdbms ipc message WAITING
540 rdbms ipc message WAITING
541 smon timer WAITING
542 rdbms ipc message WAITING
543 rdbms ipc message WAITING
544 rdbms ipc message WAITING
545 rdbms ipc message WAITING
546 rdbms ipc message WAITING
547 gcs remote message WAITING
548 gcs remote message WAITING
549 gcs remote message WAITING
550 gcs remote message WAITING
551 ges remote message WAITING
552 rdbms ipc message WAITING
553 rdbms ipc message WAITING
554 DIAG idle wait WAITING
555 pmon timer WAITING
79 jobq slave wait WAITING
117 gc buffer busy WAITING
163 PX Deq: Execute Reply WAITING
205 db file parallel read WAITING
247 gc current request WAITING
279 jobq slave wait WAITING
319 LNS ASYNC end of log WAITING
343 jobq slave wait WAITING
348 direct path read WAITING
372 db file scattered read WAITING
475 jobq slave wait WAITING
494 gc cr request WAITING
516 Streams AQ: qmn slave idle wait WAITING
518 Streams AQ: waiting for time management or cleanup tasks WAITING
523 Streams AQ: qmn coordinator idle wait WAITING
528 rdbms ipc message WAITING
529 rdbms ipc message WAITING
530 Streams AQ: waiting for messages in the queue WAITING
532 rdbms ipc message WAITING
537 rdbms ipc message WAITING
538 rdbms ipc message WAITING
539 rdbms ipc message WAITING
540 rdbms ipc message WAITING
541 smon timer WAITING
542 rdbms ipc message WAITING
543 rdbms ipc message WAITING
544 rdbms ipc message WAITING
545 rdbms ipc message WAITING
546 rdbms ipc message WAITING
547 gcs remote message WAITING
548 gcs remote message WAITING
549 gcs remote message WAITING
550 gcs remote message WAITING
551 ges remote message WAITING
552 rdbms ipc message WAITING
553 rdbms ipc message WAITING
554 DIAG idle wait WAITING
555 pmon timer WAITINGI am not at all able to understand what this SQL is...i think its related to some XML datatype.
Also not able to generate execution plan for this sql using explain plan- getting error(ORA-00932: inconsistent datatypes: expected - got -)
Please help me in this issue...
How can i generate execution plan?
Does this type of XML based query will cause high GC wiat events and buffer busy wait events?
How can i tune this query?
How can i find that this is the only query causing High CPU usage?
Our servers are having 64 GB RAM and 16 CPU's..
OS is Solaris 5.10 with UDP as protocol for interconnect..
-Yasser
I found some more xml queries as shown below.
SELECT XMLELEMENT("Resource", XMLATTRIBUTES(RAWTOHEX(RMR.RESOURCE_ID) AS "resourceID", RMO.OWNER_CODE AS "ownerCode", RMR.MIME_TYPE AS "mimeType",RMR.FILE_SIZE AS "fileSize", RMR.RESOURCE_STATUS AS "status"), (SELECT XMLAGG(XMLELEMENT("ResourceLocation", XMLATTRIBUTES(RAWTOHEX(RMRP.REPOSITORY_ID) AS "repositoryID", RAWTOHEX(DIRECTORY_ID) AS "directoryID", RESOURCE_STATE AS "state", RMRO.RETRIEVAL_SEQ AS "sequence"), XMLFOREST(FULL_PATH AS "RemotePath"))ORDER BY RMRO.RETRIEVAL_SEQ) FROM RM_RESOURCE_PATH RMRP, RM_RETRIEVAL_ORDER RMRO, RM_LOCATION RML WHERE RMRP.RESOURCE_ID = RMR.RESOURCE_ID AND RMRP.REPOSITORY_ID = RMRO.REPOSITORY_ID AND RMRO.LOCATION_ID = RML.LOCATION_ID AND RML.LOCATION_CODE = :B2 ) AS "Locations") FROM RM_RESOURCE RMR, RM_OWNER RMO WHERE RMR.OWNER_ID = RMO.OWNER_ID AND RMR.RESOURCE_ID = HEXTORAW(:B1 )
SELECT XMLELEMENT ( "Resources", XMLAGG(XMLELEMENT ( "Resource", XMLATTRIBUTES (B.RESOURCE_ID AS "id"), XMLELEMENT ("ContentType", C.CONTENT_TYPE_CODE), XMLELEMENT ("TextExtractStatus", B.TEXT_EXTRACTED_STATUS), XMLELEMENT ("MimeType", B.MIME_TYPE), XMLELEMENT ("NumberPages", TO_CHAR (B.NUM_PAGES)), XMLELEMENT ("FileSize", TO_CHAR (B.FILE_SIZE)), XMLELEMENT ("Status", B.STATUS), XMLELEMENT ("ContentFormat", D.CONTENT_FORMAT_CODE), G.ALTKEY )) ) FROM CM_PACKET A, CM_RESOURCE B, CM_REF_CONTENT_TYPE C, CM_REF_CONTENT_FORMAT D, ( SELECT XMLELEMENT ( "AlternateKeys", XMLAGG(XMLELEMENT ( "AlternateKey", XMLATTRIBUTES ( H.ALT_KEY_TYPE_NAME AS "keyType", E.CHILD_BROKER_CODE AS "broker", E.VERSION AS "version" ), E.ALT_KEY_VALUE )) ) ALTKEY, E.RESOURCE_ID RES_ID FROM CM_RESOURCE_ALT_KEY E, CM_RESOURCE F, CM_ALT_KEY_TYPE H WHERE E.RESOURCE_ID = F.RESOURCE_ID(+) AND F.PACKET_ID = HEXTORAW (:B1 ) AN
D E.ALT_KEY_TYPE_ID = H.ALT_KEY_TYPE_ID GROUP BY E.RESOURCE_ID) G WHERE A.PACKET_ID = HEXTORAW (:B1
SELECT XMLELEMENT ("Tagging", XMLAGG (GROUPEDCAT)) FROM ( SELECT XMLELEMENT ( "TaggingCategory", XMLATTRIBUTES (CATEGORY1 AS "categoryType"), XMLAGG (LISTVALUES) ) GROUPEDCAT FROM (SELECT EXTRACTVALUE ( VALUE (T), '/TaggingCategory/@categoryType' ) CATEGORY1, XMLCONCAT(EXTRACT ( VALUE (T), '/TaggingCategory/TaggingValue' )) LISTVALUES FROM TABLE(XMLSEQUENCE(EXTRACT ( :B1 , '/Tagging/TaggingCategory' ))) T) GROUP BY CATEGORY1)
SELECT XMLCONCAT ( :B2 , DI_CONTENT_PKG.GET_ENUM_TAGGING_FN (:B1 ) ) FROM DUAL
SELECT XMLCONCAT (:B2 , :B1 ) FROM DUAL
SELECT * FROM EQ_RAW_TAG_ERROR A WHERE TAG_LIST_ID = :B2 AND EXTRACTVALUE (A.RAW_TAG_XML, '/TaggingValues/TaggingValue/Value' ) = :B1 AND A.STATUS = '
NR'
SELECT RAWTOHEX (S.PACKET_ID) AS PACKET_ID, PS.PACKET_STATUS_DESC, S.LAST_UPDATE AS LAST_UPDATE, S.USER_ID, S.USER_COMMENT, MAX (T.ALT_KEY_VALUE) AS ALTKEY, 'Y' AS IS_PACKET FROM EQ_PACKET S, CM_PACKET_ALT_KEY T, CM_REF_PACKET_STATUS PS WHERE S.STATUS_ID = PS.PACKET_STATUS_ID AND S.PACKET_ID = T.PACKET_ID AND NOT EXISTS (SELECT 1 FROM CM_RESOURCE RES WHERE RES.PACKET_ID = S.PACKET_ID AND EXISTS (SELECT 1 FROM CM_REF_CONTENT_FORMAT CF WHERE CF.CONTENT_FORMAT_ID = RES.CONTENT_FORMAT AND CF.CONTENT_FORMAT_CODE = 'I_FILE')) GROUP BY RAWTOHEX (S.PACKET_ID), PS.PACKET_STATUS_DESC, S.LAST_UPDATE, S.USER_ID, S.USER_COMMENT UNION SELECT RAWTOHEX (A.FATAL_ERROR_ID) AS PACKET_ID, C.PACKET_STATUS_DESC, A.OCCURRENCE_DATE AS LAST_UPDATE, '' AS USER_ID, '' AS USER_COMMENT, RAWTOHEX (A.FATAL_ERROR_ID) AS ALTKEY, 'N' AS IS_PACKET FROM EQ_FATAL_ERROR A, EQ_ERROR_MSG B, CM_REF_PACKET_STATUS C, EQ_SEVERITYD WHERE A.PACKET_ID IS NULL AND A.STATUS = 'NR' AND A.ERROR_MSG_ID = B.ERROR_MSG_ID AND B.SEVERITY_I
SELECT /*+ INDEX(e) INDEX(a) INDEX(c)*/ XMLAGG(XMLELEMENT ( "TaggingCategory", XMLATTRIBUTES ( G.TAG_CATEGORY_CODE AS "categoryType" ), XMLELEMENT ("TaggingValue", XMLATTRIBUTES (C.IS_PRIMARY AS "primary", H.ORIGIN_CODE AS "origin"), XMLAGG(XMLELEMENT ( "Value", XMLATTRIBUTES ( F.TAG_LIST_CODE AS "listType" ), E.TAG_VALUE )) ) )) FROM TABLE (CAST (:B1 AS T_TAG_MAP_HIERARCHY_TAB)) A, TABLE (CAST (:B2 AS T_ENUM_TAG_TAB)) C, REM_TAG_VALUE E, REM_TAG_LIST F, REM_TAG_CATEGORY G, CM_ORIGIN H WHERE E.TAG_VALUE_ID = C.TAG_VALUE_ID AND F.TAG_LIST_ID = E.TAG_LIST_ID AND G.TAGGING_CATEGORY_ID = F.TAGGING_CATEGORY_ID AND H.ORIGIN_ID = C.ORIGIN_ID AND C.ENUM_TAG_ID = A.MAPPED_ENUM_TAG_ID GROUP BY C.IS_PRIMARY, H.ORIGIN_CODE, G.TAG_CATEGORY_CODE START WITH A.MAPPED_ENUM_TAG_ID = HEXTORAW (:B3 ) CONNECT BY PRIOR A.MAPPED_ENUM_TAG_ID = A.ENUM_TAG_ID
SELECT /*+ INDEX(e) */ XMLAGG(XMLELEMENT ( "TaggingCategory", XMLATTRIBUTES ( G.TAG_CATEGORY_CODE AS "categoryType" ), XMLELEMENT ( "TaggingValue", XMLATTRIBUTES (C.IS_PRIMARY AS "primary", H.ORIGIN_CODE AS "origin"), XMLAGG(XMLCONCAT ( XMLELEMENT ( "Value", XMLATTRIBUTES ( F.TAG_LIST_CODE AS "listType" ), E.TAG_VALUE ), CASE WHEN LEVEL = 1 THEN :B4 ELSE NULL END )) ) )) FROM TABLE (CAST (:B1 AS T_TAG_MAP_HIERARCHY_TAB)) A, TABLE (CAST (:B2 AS T_ENUM_TAG_TAB)) C, REM_TAG_VALUE E, REM_TAG_LIST F, REM_TAG_CATEGORY G, CM_ORIGIN H WHERE E.TAG_VALUE_ID = C.TAG_VALUE_ID AND F.TAG_LIST_ID = E.TAG_LIST_ID AND G.TAGGING_CATEGORY_ID = F.TAGGING_CATEGORY_ID AND H.ORIGIN_ID = C.ORIGIN_ID AND C.ENUM_TAG_ID = A.MAPPED_ENUM_TAG_ID GROUP BY G.TAG_CATEGORY_CODE, C.IS_PRIMARY, H.ORIGIN_CODE START WITH A.MAPPED_ENUM_TAG_ID = HEXTORAW (:B3 ) CONNECT BY PRIOR A.MAPPED_ENUM_TAG_ID = A.ENUM_TAG_IDBy observing above sql queries i found some hints forcing for index usage..
I think xml schema is created already...and its progressing as you stated above. Please correct if i am wrong.
I found all these sql from AWR report and all of these are very high resource consuming queries.
And i am really sorry if i am irritating you by asking all stupid questions related to xml.
-Yasser
Edited by: YasserRACDBA on Nov 17, 2009 3:39 PM
Did syntax allignment.
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"harpo_" <[email protected]> wrote in
message
news:f0a6rd$2eh$[email protected]..
> hmm.. fixed it by excluding dreamweaver.exe from the so
called 'data
> execution prevention' -
[SOLVED] External USB mouse causes very high CPU load
Hello,
this is far from a scientific test, but if I launch a cpu load monitor and wiggle the mouse cursor over it with the built-in touchpad, the CPU load goes up by 3-4%. When I do the same with a USB mouse, it's 30-40%. Also, in a 3D game, moving the camera around with the touchpad drops the FPS from 35 to 25, while doing the same with the USB mouse drops it to about 5-10 FPS, so something is definetely wrong here.
If I don't touch the mouse, it doesn't produce any load.
The CPU load comes from both X and the window over which I am wiggling the cursor, whether it is a terminal, browser or whatever, with the window contributing about 2/3 of it. If I don't do it over a window, the excessive load comes only from X and is much smaller (but still several times bigger than the load the touchpad produces).
I have no idea how to even tackle the issue.
I run Arch 64, on an Asus 1201N laptop. The mouse is Logitech G5 (laser mouse).
Last edited by Porost (2011-09-23 19:36:04)Have you tried with a different mouse, to check if it is specific to this mouse /driver? Does lowering the polling rate help? (https://wiki.archlinux.org/index.php/Mouse_Polling_Rate) .I remember vaguely that laptop mode caused this too.. search the forums for mouse and cpu.
Last edited by rwd (2011-09-23 19:24:30) -
Since 10.4.6 Update: "ATSServer" with high CPU-usage when opening PDFs
Since I've updated to 10.4.6 my system is very slow when I open PDFs (in "Preview" or "Acrobat").
This is caused by the process "ATSServer" which goes through every file in "~/Library/Fonts" (I have over 4.800 files there - but just a view are activated by "FontBook") and so it takes very high CPU-usage.
I didn't have this problem bevore the update and I didn't make any changes on my font settings.
I've cleaned the font cache, but it doesn't help.
Any ideas?
Ciao
Mephizo
PS: Excuse my poor English.
PowerBook G4 17'' 1.67 GHz Mac OS X (10.4.6)
PowerBook G4 17'' 1.67 GHz Mac OS X (10.4.6)I haven't noticed any change myself, Dan, but I have the 2 GHz model.
One thing I HAVE noticed though after OS updates is that they can often result in a fair amount of file and free space fragmentation immediately after installation. OSX's routines will deal with fragmentation of small files , but not of large ones (over 20 Meg), and it won't deal very effectively with free space fragmentation. If your HD is getting full this can cause significant slowdowns, especially where video is involved.
You should also run DiskUtility and check for any directory and permissions issues.
Cheers
Rod -
High CPU Usage On client application when upgrade remote SQL database
Hi,
Is anyone here encountered very high CPU usage after upgraded the database from SQL 2005 to SQL 2012? Following describes my issue.
I have my client application running on Windows 7 that access to central database (SQL 2005) on Windows server 2003 using ODBC connection, this client application basically query data and perform data insert and update. There are a number of this similar
clients connected to the database.
Due to slowness of the database server, company decided to upgrade the database server to SQL 2012 and also new hardware runing Windows Server 2012. There is no change on the client application and client hardware and the client application still using the
same ODBC connection to query, insert or update the new database server.
The problem I am now experiencing now is that my client PC where my client application running the CPU usage is very high almost hitting 100% when accessing to the central database. I am also noticed this program lsass.exe that utilized almost 40-50% of
the CPU time when client application accessing the central database.
Is anyone here know, why client PC CPU usage 100% when access to upgraded SQL 2012 database? What is lsass.exe program doing, it only appear when accessing to database server. How to reduce the CPU usage on client?
Thanks.
Chee Wee.Hello,
After upgrading, please rebuild indexes and update statistics on the databases.
http://www.mssqltips.com/sqlservertip/1367/sql-server-script-to-rebuild-all-indexes-for-all-tables-and-all-databases/
http://www.mssqltips.com/sqlservertip/1606/execute-update-statistics-for-all-sql-server-databases/
Configure maxdop on the instance.
http://blogs.msdn.com/b/sqlsakthi/archive/2012/05/24/wow-we-have-maxdop-calculator-for-sql-server-it-makes-my-job-easier.aspx
If the above does not solve the issue, let us know.
Hope this helps.
Regards,
Alberto Morillo
SQLCoffee.com -
High cpu usage for garbage collection (uptime vs total gc time)
Hi Team,
We have a very high cpu usage issue in the production.
When we restart the server, the cpu idle time would be around 95% and it comes down as days goes by. Today idle cpu is 30% and it is just 6th day after the server restart.
Environemnt details:
Jrockit version:
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_05-b04)
BEA WebLogic JRockit(TM) 1.4.2_05 JVM R24.4.0-1 (build ari-38120-20041118-1131-linux-ia32, Native Threads, GC strategy: parallel)
Gc Algorithm: JRockit Garbage Collection System currently running strategy: Single generational, parallel mark, parallel sweep
Number Of Processors: 4
Max Heap Size: 1073741824
Total Garbage Collection Time: 21:43:56.5
Uptime: 114:33:4.1
Total Garbage Collection Count: 420872
Total Number Of Threads: 198
Number Of Daemon Threads: 191
Can you guys please tell me what would be problem in the server which causing the high cpu usage?
One more thing I would like to know is that why the total number of threads is 198 when we specified the Executor pool size as 25? I agree that weblogic would create some threads for its maintenance but around 160 threads!!! something is wrong I guess.
Santhosh.
[email protected]Hi,
I'm having a similar problem, but haven't been able to resolve it yet. Troubleshooting is made even harder by the fact that this is only happening on our production server, and I've been unable to reproduce it in the lab.
I'll post whatever findings I have and hopefully we'll be able to find a solution with the help of BEA engineers.
In my case, I have a stand-alone Tomcat server that runs fine for about 1-2 days, and then the JVM suddenly starts using more CPU, and as a result, the server load shoots up (normal CPU utilization is ~5% but eventually goes up to ~95%; load goes from 0.1 to 4+).
What I have found so far is that this corresponds to increased GC activity.
Let me list my environment specs before I proceed, though:
CPU: Dual Xeon 3.06GHz
RAM: 2GB
OS: RHEL4.4 (2.6.9-42.0.2.ELsmp)
JVM build 1.5.0_03-b07 (BEA JRockit(R) (build dra-45238-20050523-2008-linux-ia32, R25.2.0-28))
Tomcat version 5.5.12
JAVA_OPTS="-Xms768m -Xmx768m -XXtlasize16k -XXlargeobjectlimit16k -Xverbose:memory,cpuinfo -Xverboselog:/var/log/tomcat5/jvm.log -Xverbosetimestamp"
Here are excerpts from my verbose log (I'm getting some HT warning, not sure if that's a problem):
[Fri Oct 20 15:54:18 2006][22855][cpuinfo] Detected SMP with 2 CPUs that support HT.
[Fri Oct 20 15:54:18 2006][22855][cpuinfo] Trying to determine if HT is enabled.
[Fri Oct 20 15:54:18 2006][22855][cpuinfo] Trying to read from /dev/cpu/0/cpuid
[Fri Oct 20 15:54:18 2006][22855][cpuinfo] Warning: Failed to read from /dev/cpu/0/cpuid
[Fri Oct 20 15:54:18 2006][22855][cpuinfo] Trying to read from /dev/cpu/1/cpuid
[Fri Oct 20 15:54:18 2006][22855][cpuinfo] Warning: Failed to read from /dev/cpu/1/cpuid
[Fri Oct 20 15:54:18 2006][22855][cpuinfo] HT is: supported by the CPU, not enabled by the OS, enabled in JRockit.
[Fri Oct 20 15:54:18 2006][22855][cpuinfo] Warning: HT enabled even though OS does not seem to support it.
[Fri Oct 20 15:54:55 2006][22855][memory ] GC strategy: System optimized over throughput (initial strategy singleparpar)
[Fri Oct 20 15:54:55 2006][22855][memory ] heap size: 786432K, maximal heap size: 786432K
[Fri Oct 20 16:07:30 2006][22855][memory ] Changing GC strategy to generational, parallel mark and parallel sweep
[Fri Oct 20 16:07:30 2006][22855][memory ] 791.642-791.874: GC 786432K->266892K (786432K), 232.000 ms
[Fri Oct 20 16:08:02 2006][22855][memory ] 824.122: nursery GC 291998K->274164K (786432K), 175.873 ms
[Fri Oct 20 16:09:51 2006][22855][memory ] 932.526: nursery GC 299321K->281775K (786432K), 110.879 ms
[Fri Oct 20 16:10:24 2006][22855][memory ] 965.844: nursery GC 308151K->292222K (786432K), 174.609 ms
[Fri Oct 20 16:11:54 2006][22855][memory ] 1056.368: nursery GC 314718K->300068K (786432K), 66.032 ms
[Sat Oct 21 23:21:09 2006][22855][memory ] 113210.427: nursery GC 734274K->676137K (786432K), 188.985 ms
[Sat Oct 21 23:30:41 2006][22855][memory ] 113783.140: nursery GC 766601K->708592K (786432K), 96.007 ms
[Sat Oct 21 23:36:15 2006][22855][memory ] 114116.332-114116.576: GC 756832K->86835K (786432K), 243.333 ms
[Sat Oct 21 23:48:20 2006][22855][memory ] 114841.653: nursery GC 182299K->122396K (786432K), 175.252 ms
[Sat Oct 21 23:48:52 2006][22855][memory ] 114873.851: nursery GC 195060K->130483K (786432K), 142.122 ms
[Sun Oct 22 00:01:31 2006][22855][memory ] 115632.706: nursery GC 224096K->166618K (786432K), 327.264 ms
[Sun Oct 22 00:16:37 2006][22855][memory ] 116539.368: nursery GC 246564K->186328K (786432K), 173.888 ms
[Sun Oct 22 00:26:21 2006][22855][memory ] 117122.577: nursery GC 279056K->221543K (786432K), 170.367 ms
[Sun Oct 22 00:26:21 2006][22855][memory ] 117123.041: nursery GC 290439K->225833K (786432K), 69.170 ms
[Sun Oct 22 00:29:10 2006][22855][memory ] 117291.795: nursery GC 298947K->238083K (786432K), 207.200 ms
[Sun Oct 22 00:39:05 2006][22855][memory ] 117886.478: nursery GC 326956K->263441K (786432K), 87.009 ms
[Sun Oct 22 00:55:22 2006][22855][memory ] 118863.947: nursery GC 357229K->298971K (786432K), 246.643 ms
[Sun Oct 22 01:08:17 2006][22855][memory ] 119638.750: nursery GC 381744K->322332K (786432K), 147.996 ms
[Sun Oct 22 01:11:22 2006][22855][memory ] 119824.249: nursery GC 398678K->336478K (786432K), 93.046 ms
[Sun Oct 22 01:21:35 2006][22855][memory ] 120436.740: nursery GC 409150K->345186K (786432K), 81.304 ms
[Sun Oct 22 01:21:38 2006][22855][memory ] 120439.582: nursery GC 409986K->345832K (786432K), 153.534 ms
[Sun Oct 22 01:21:42 2006][22855][memory ] 120443.544: nursery GC 410632K->346473K (786432K), 121.371 ms
[Sun Oct 22 01:21:44 2006][22855][memory ] 120445.508: nursery GC 411273K->347591K (786432K), 60.688 ms
[Sun Oct 22 01:21:44 2006][22855][memory ] 120445.623: nursery GC 412391K->347785K (786432K), 68.935 ms
[Sun Oct 22 01:21:45 2006][22855][memory ] 120446.576: nursery GC 412585K->348897K (786432K), 152.333 ms
[Sun Oct 22 01:21:45 2006][22855][memory ] 120446.783: nursery GC 413697K->349080K (786432K), 70.456 ms
[Sun Oct 22 01:34:16 2006][22855][memory ] 121197.612: nursery GC 437378K->383392K (786432K), 165.771 ms
[Sun Oct 22 01:37:37 2006][22855][memory ] 121398.496: nursery GC 469709K->409076K (786432K), 78.257 ms
[Sun Oct 22 01:37:37 2006][22855][memory ] 121398.730: nursery GC 502490K->437713K (786432K), 65.747 ms
[Sun Oct 22 01:44:03 2006][22855][memory ] 121785.259: nursery GC 536605K->478156K (786432K), 132.293 ms
[Sun Oct 22 01:44:04 2006][22855][memory ] 121785.603: nursery GC 568408K->503635K (786432K), 71.751 ms
[Sun Oct 22 01:50:39 2006][22855][memory ] 122180.985: nursery GC 591332K->530811K (786432K), 131.831 ms
[Sun Oct 22 02:13:52 2006][22855][memory ] 123573.719: nursery GC 655566K->595257K (786432K), 117.311 ms
[Sun Oct 22 02:36:04 2006][22855][memory ] 124905.507: nursery GC 688896K->632129K (786432K), 346.990 ms
[Sun Oct 22 02:50:24 2006][22855][memory ] 125765.715-125765.904: GC 786032K->143954K (786432K), 189.000 ms
[Sun Oct 22 02:50:26 2006][22855][memory ] 125767.535-125767.761: GC 723232K->70948K (786432K), 225.000 ms
vvvvv
[Sun Oct 22 02:50:27 2006][22855][memory ] 125768.751-125768.817: GC 712032K->71390K (786432K), 64.919 ms
[Sun Oct 22 02:50:28 2006][22855][memory ] 125769.516-125769.698: GC 711632K->61175K (786432K), 182.000 ms
[Sun Oct 22 02:50:29 2006][22855][memory ] 125770.753-125770.880: GC 709632K->81558K (786432K), 126.000 ms
[Sun Oct 22 02:50:30 2006][22855][memory ] 125771.699-125771.878: GC 708432K->61368K (786432K), 179.000 ms
So, I'm running with the default GC strategy which lets the GC pick the most suitable approach (single space or generational). It seems to switch to generational almost immediately and runs well - most GC runs are in the nursery, and only once in a while it goes through the older space.
Now, if you look at [Sun Oct 22 02:50:27 2006], that's when everything changes. GC starts running every second (later on it's running 3 times a second) doing huge sweeps. It never goes through the nursery again, although the strategy is still generational.
It's all downhill from this point on, and it's a matter of hours (maybe a day) before we restart the server.
I guess my only question is: What would cause such GC behavior?
I would appreciate your ideas/comments!
Thanks,
Tenyo -
Microsoft Office 2004 -- extremely high cpu usage and virtual ram
hi,
when i use office it causes a very high cpu usage even when its in idle mode.
i am unable to work with it, because its extremely slow.
does anyone have same experiences?
thanks for your help!
mbp 2.0 1,5gb ram 80gb hdd Mac OS X (10.4.7)I am able to work OK with office, I'm using the 'old version' Microsoft Office v.X, not much details in the About Box, just listed as MSoft Word/Excel/etc for Mac service release 1.
I get the occasional crash, and I have seen Word in particular use 90% of a single core and amazingly large virtual memory usage, gigabytes sometimes, but eventually the document gets printed.
It shows how useful the dual core (or quad) cpu approach is!
One cpu for Word to print, and one cpu to run the rest of my applications/life!
I still use this old office rather than re-booting into Window§ for whatever is the latest version of office.
Doing some playing with a similar one page document in Office v.X and Pages 2.01, I get Word using about 25% of a core , Pages using 5%, - whilst editing; Intel native Pages has 20% of a core and 80MB ram 480 virtual whilst printing, Word has about 100% of a core and 65MB ram 650 virtual whilst printing, but it is a powerPC code so Rosetta is in there somewhere.
check Activity Monitor or other apps/widgets for some parasitic processes? have fun!
many Macs 512k -> MacBool Pro 2GHz 1GB ram Mac OS X (10.4.7) Yes, I have Key Lime -
Screen Sharing freezing and high CPU usage
Hello all,
I use screen sharing to remote my mac mini as a media server connected to ma HD TV to play movies, music and surf.
Since I upgrade to mavericks on my macs (Macbook Pro Retina and my Mac Mini) I have some troubles with the screen sharing feature.
No problems with the login step, the connexion is fast, all permissions are OK (I saw there were a bug with some RDP release) but sometimes, when I use fullscreen software as VLC, Firefox, etc (not the native apple full screen feature, I just clic on the + at the top of the window), my sreen sharing freeze and I can't do or move anything on the remoted mac mini. I'm unable to close (or reduce) the screen sharing app too, it's totaly busy (But I can see the movie or the website on the 2 computer, there is no deconnection)... I have to kill the process through the monitoring activity.
During the freezing time, I try to use vnc light from my Iphone and I have no problem, I can move the mouse, reduce le VLC windows... As soon I reduce the VLC windows, the screen sharing works again. I also use the logitech TouchMouse to remote the mouse, everything work fine.
Here are a screen shot of the monitoring activity of the Mac running the screen sharing app, we can see that there is a very high CPU usage when I use VLC in fullscreen on my mac mini. The first is in normal mode. The second is in freeze mode. Screen Sharing is named "Partage d'écran".
Can someone help me to fix that, everything works fine with Mountain Lion.I have a Macbook Pro 13.5" 2.8 GHz 4 core (2 real, 2 hyperthreaded) i7 machine running with 1920X1200 display, 3 virtual screens and VMWare adding a few virtual screens (full sized). I have another Macbook Pro 15" with 2.6 GHz Haswell 8 core (4 real, 4 hyperthreaded). I see the problem using Screen Sharing on the 15 inch (Retina screen) mode simulating 1920 X 1200 pixels using Screen Sharing to the 13.5" Macbook Pro.
When I get the ScreenSharing problem, I have identified it as related to the VMWare screen on the 13.5" Macbook Pro being shown through Screen Sharing on the Retina Screen. Before you conclude it is a VMWare problem, the computations are only on the Screen Sharing client side, not on the server side running VMWare. The mouse gets unusable through Screen Sharing. If I physically move the mouse on the 13.5" Macbook, no problem. If I switch virtual screens, the Screen Sharing goes to normal processing.
I see an appearance of a compute-bound thread on the Screen Sharing client. It takes 100% CPU on one thread, the machine as a whole is 12.5% busy (the performance monitor considers all 8 threads as equal when in fact, they are not).
A few more pieces of information. The VMWare client ends up having a lot of overlapping windows with a lot of changing graphics. My mouse runs into problems especially when it is overlaying a changing plot (Perfmon running in Windows 7, or updating email client). It does turn out that VMWare has a "native" VNC server built-in and I tried to connect to the virtual screen using the Screen Sharing Client on the machine with computing problem and voila!, no problem. I end up having a Screen Sharing Client running native running screen (supposed to be VNC, but I have not verified that) sharing protocol on a virtual screen that is NOT the VMWare virtual screen and a separate session using actual VNC protocol using the VMWare VNC server. It works perfectly fine.
If I may hazard a guess, I think I know what the bug is, or at least, what is the nature of the problem that I have. The rest of you may have a different bug. When I have difficulty, it is because I am on a window that suppresses the dock, both in remote virtual screen and on the local machine showing the screen. Two docks are suppressed, one remote, one local. Throw in overlapping windows with changing graphics in the overlapped windows and toss in a mouse on top of that. I think that the Screen Sharing is trying to refresh overlapping windows with mouse and going through the suppressed dock calculations and never converging on what the picture should be. The mouse ends up being the visible cue that shows the time frame for iterating the windows - flickers with a timeframe of greater than a second. That is far greater than the screen update time. It is totally compute bound with all the overlapping stuff that it is deconflicting. At least, that is what I think is going on.
Meanwhile, the VMWare VNC server appears to send out a single graphics context and causes the Screen Sharing client to converge to a picture. Note, the mouse appearance is very different when attaching to the VMWare VNC Server rather than the ScreenSharing native server. I see two mouse renderings, the virtual machine remote and a mouse rendering from my Screen Sharing client side. They are mostly in sync in position unless I move the mouse very quickly. If I use Screen Sharing client and server instead, I usually see only one mouse, the client side's mouse rendering.
I have a solution for my problem. It is similar to using a different VNC server/client pairing. I will use a VNC server for the systems giving me trouble that is not Screen Sharing Server exercising a probable bug in the Client (though, it could be a problem in the design of Screen Sharing itself). -
Hi guys
I got a problem with an IPS, from some weeks the CPU has been at 100% (all the 4 CPU's) and I don't know why, the Inspection Load is really low and I guess this is not affecting to this. Here some information of the SHOW VERSION command
*I also attach some images of the IPS*
Cisco Intrusion Prevention System, Version 7.1(1)E4
Host:
Realm Keys key1.0
Signature Definition:
Signature Update S807.0 2014-06-13
OS Version: 2.6.29.1
Platform: ASA5585-SSP-IPS10
Using 4428M out of 5839M bytes of available memory (75% usage)
system is using 25.1M out of 160.0M bytes of available disk space (16% usage)
application-data is using 68.0M out of 171.6M bytes of available disk space (42% usage)
boot is using 56.0M out of 70.5M bytes of available disk space (84% usage)
application-log is using 494.0M out of 513.0M bytes of available disk space (96% usage)
I hope somebody had some idea what could be causing the high cpu usage.
RegardsHas this been something that just recently started happening, or have you had this issue for a while? Have you installed any new programs recently?
You may want to download Glary Utilities, which is a free software(they will ask you if you want to go Pro, just say no, the free version works very well). There is a module for startup manager. You can go in and disable stuff that starts with the computer. I would advise unchecking adobe, java, quicktime, printers, etc. Anything that doesn't REALLY need to start with the computer. The nice thing with Glary is that you can restart the computer, and if you find that you need one of the programs to start with windows, you can go back in and enable it again.
The Celeron 925 processor in your computer is a decent entry level processor, but if there are too many programs running in the background, it can bog down quick. I would also recommend downloading and running Malwarebytes Anti-malware, to be sure that there is nothing malicous running in the background.
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