[TYPO3-UG Italy] R: Re: 100%cpu

[luca-mastro at libero.it]

Buondì,

Un incremento tale nella cpu, può essere una query che va in loop, non appena 
viene risolta, il loop si interrompe e le prestazioni ritornano standard.
Una soluzione interessante potrebbe riguardare il tuning di mysql e, per 
questo scopo, esistono tool specifici.

ciao,

Luca

>----Messaggio originale----
>Da: mauro.lorenzutti at webformat.com
>Data: 10/03/2014 11.43
>A: <typo3-ug-italy at lists.typo3.org>
>Ogg: Re: [TYPO3-UG Italy] 100%cpu
>
>Ciao Paolo,
>
>hai attiva la cache su file statico? Potrebbe dipendere dal fatto che 
>deve cancellare troppi file su disco.
>oppure potrebbe essere il mysql a piantarti la cpu mentre cancella 
>tabelle che magari hanno raggiunto dimensioni ragguardevoli (in questo 
>caso potresti valutare di adottare memcache)
>
>Ciao,
>-- 
>
>Mauro Lorenzutti
>
>CTO / Software Architect
>mauro.lorenzutti at webformat.com
>Tel.   +39-0427-926.389
>
>WEBFORMAT srl -- www.webformat.com
>Via Mecenate, 76 - 20138 MILANO
>Corte Europa, 12 - 33097 SPILIMBERGO (PN)
>
>*** TYPO3 Certified Integrator *** - *** Magento Certified Developer ***
>
>
>
>Il 10/03/2014 11:39, Paolo Bragagni ha scritto:
>> aggiornamento:
>> la cpu al 100% mi va quando cancello la cache.
>>
>> fra l'altro ho inserito il codice per il quale quando un utente edita una
>> news, il sistema cancella la cache di certe pagine, ma
>> ho il problema che ci mette 4 o 5 secondi (e la cpu schizza al 100%).
>>
>> credevo fosse un problema facilemtne risolvibile, invece ci sto
>> impazzendo...
>>
>> saluti,
>> PB
>>
>>
>> Il giorno 07 marzo 2014 17:10, Paolo Bragagni <paolo.bragagni at gmail.com> 
ha
>> scritto:
>>
>>> C é solo TYPO 3 6.1.5dev con twitter boostrap da fedext
>>> Ubuntu apache PHP MySQL versioni recenti
>>> Il 07/mar/2014 14:45 "Attilio Monti NewtVision" <
>>> attilio.monti at newtvision.com> ha scritto:
>>>
>>>> Ciao Paolo,
>>>> ma su questo server cosa c'è caricato, esclusivamente Typo3 ? E se c'è
>>>> solo typo3 che estensioni ci sono caricate e se ci sono degli script
>>> custom.
>>>>
>>>> Attilio Monti
>>>>
>>>> NewtVision
>>>> Il giorno 07/mar/2014, alle ore 14:40, Paolo Bragagni <
>>>> paolo.bragagni at gmail.com> ha scritto:
>>>>
>>>>> salve, devo avere dei problemi al server perhe talvolta vedo che
>>> apache2
>>>> ha
>>>>> dei picchi di cpu al 100% anche col server scarico.
>>>>>
>>>>> Ho questo tipo di risultato con il benchmark test che non mi sembra
>>>>> incoraggiante.
>>>>>
>>>>>
>>>>> Qualcuno ha esperienze in merito?
>>>>>
>>>>> Grazie,
>>>>> PB
>>>>>
>>>>> ----------------------
>>>>> Benchmarking localhost (be patient)
>>>>> Finished 659 requests
>>>>>
>>>>>
>>>>> Server Software:        Apache/2.2.22
>>>>> Server Hostname:        localhost
>>>>> Server Port:            80
>>>>>
>>>>> Document Path:          /
>>>>> Document Length:        68152 bytes
>>>>>
>>>>> Concurrency Level:      10
>>>>> Time taken for tests:   30.067 seconds
>>>>> Complete requests:      659
>>>>> Failed requests:        0
>>>>> Write errors:           0
>>>>> Keep-Alive requests:    0
>>>>> Total transferred:      45192902 bytes
>>>>> HTML transferred:       44912168 bytes
>>>>> Requests per second:    21.92 [#/sec] (mean)
>>>>> Time per request:       456.247 [ms] (mean)
>>>>> Time per request:       45.625 [ms] (mean, across all concurrent
>>>> requests)
>>>>> Transfer rate:          1467.86 [Kbytes/sec] received
>>>>>
>>>>> Connection Times (ms)
>>>>>               min  mean[+/-sd] median   max
>>>>> Connect:        0    0   0.2      0       3
>>>>> Processing:   212  453 100.1    450     869
>>>>> Waiting:      201  422  95.9    420     825
>>>>> Total:        212  453 100.1    450     871
>>>>>
>>>>> Percentage of the requests served within a certain time (ms)
>>>>>   50%    450
>>>>>   66%    486
>>>>>   75%    508
>>>>>   80%    531
>>>>>   90%    583
>>>>>   95%    631
>>>>>   98%    683
>>>>>   99%    745
>>>>> 100%    871 (longest request)
>>>>> ----------------------
>>>>> _______________________________________________
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