Hi Luca,

Yes, the graph-example-2.xml  import times are already present here at this 
thread, in short :

- Orks JDK8 -  [java] Imported in *158111ms*. Vertexes: 809
- Orks JDK7 -  [java] Imported in *154536ms*. Vertexes: 809
- OpenJDK - [java] Imported in *2636541ms*. Vertexes: 809

The only operation that is evenly slow at all three JDK's is 'delete from ' 
- it takes nearly *30 seconds per 1500 rows*

Rus

понедельник, 19 мая 2014 г., 14:09:11 UTC+3 пользователь Lvc@ написал:
>
> Hi Rus,
> Have you tried the same test with Oracle JDK8? Just to understand if the 
> bottleneck is on OrientDB or Open JDK?
>
> Thanks,
> Lvc@
>
>
>
> On 18 May 2014 10:38, Sfinx <[email protected] <javascript:>> wrote:
>
>> No problem. I think that sometime you will decide to tune the OrientDB 
>> perfomance, it is can be done with the following :
>>
>> - use the OpenJDK only
>> - limit the Linux kernel used memory size say to 2G (use mem=2G kernel 
>> parameter)
>> - limit the CPU cores to 1 or 2 (maxcpus=2 kernel parameter)
>> - use the slowest HDD ;)
>>
>> So you can try the Raspberry again ;)
>>
>> Cheers !
>>
>> Rus
>>
>> воскресенье, 18 мая 2014 г., 11:09:56 UTC+3 пользователь Andrey Lomakin 
>> написал:
>>>
>>> Sorry for later delay we have enormous amount of tasks to do.
>>>
>>>
>>> On Sun, May 18, 2014 at 11:09 AM, Andrey Lomakin 
>>> <[email protected]>wrote:
>>>
>>>> Hi,
>>>> The point here that you always in swap, you see you have 2gb of ram but 
>>>> disk cache by default has 4gb.
>>>> Could you kindle set the parameter storage.diskCache.bufferSize to 
>>>> 1024 and try your test ?
>>>>
>>>>
>>>> On Sun, May 18, 2014 at 8:12 AM, Sfinx <[email protected]> wrote:
>>>>
>>>>> Hi Luca,
>>>>>
>>>>> Never mind - switched to MongoDB. Seems like running OrientDB on such 
>>>>> low hardware was initially bad idea ;)
>>>>>
>>>>> [proto]:root:/Arhiv/mongo # echo "{nThreads:1,fileSizeMB:1,r:true}" | 
>>>>> /opt/mongo/bin/mongoperf
>>>>> mongoperf
>>>>> use -h for help
>>>>> parsed options:
>>>>> { nThreads: 1, fileSizeMB: 1, r: true }
>>>>> creating test file size:1MB ...
>>>>> testing...
>>>>> optoins:{ nThreads: 1, fileSizeMB: 1, r: true }
>>>>> wthr 1
>>>>> new thread, total running : 1
>>>>> read:1 write:0
>>>>> 5343 ops/sec 20 MB/sec
>>>>> 5384 ops/sec 21 MB/sec
>>>>> 5359 ops/sec 20 MB/sec
>>>>> 5397 ops/sec 21 MB/sec
>>>>> 5389 ops/sec 21 MB/sec
>>>>> 5341 ops/sec 20 MB/sec
>>>>> ^C
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> среда, 14 мая 2014 г., 11:03:07 UTC+3 пользователь Sfinx написал:
>>>>>
>>>>>> Hi Luca,
>>>>>>
>>>>>> Please see the attached VisualVM and YourKit snapshots made during 
>>>>>> importing src/test/resources/graph-example-2.xml to the snapshot 
>>>>>> branch under OpenJDK. Another bottleneck noticed when deleting records 
>>>>>> from 
>>>>>> the table using simple "delete * from" SQL statement. Can profile this 
>>>>>> too 
>>>>>> if interested.
>>>>>>
>>>>>> Rus
>>>>>>
>>>>>> понедельник, 12 мая 2014 г., 19:46:13 UTC+3 пользователь Lvc@ написал:
>>>>>>>
>>>>>>> Hi Rus,
>>>>>>> could you profile the server on such HW/SW cfg (JVisualVM or better 
>>>>>>> YourKit)? When we tested OrientDB on Raspberry we found many 
>>>>>>> bottlenecks 
>>>>>>> detectable only on such architecture.
>>>>>>>
>>>>>>> Lvc@
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> Lvc@
>>>>>>>
>>>>>>>
>>>>>>> On 12 May 2014 18:30, Sfinx <[email protected]> wrote:
>>>>>>>
>>>>>>>> Hi,
>>>>>>>>
>>>>>>>> The specifying -Dmemory.useUnsafe=false prevented the hangs (thanks 
>>>>>>>> for hint !), the second option do not influence at all. Though insert 
>>>>>>>> speed 
>>>>>>>> is still too low (counting that database dir resides as fast SSD and 
>>>>>>>> the 
>>>>>>>> object is the dummy object from the post.txt):
>>>>>>>>
>>>>>>>> ........
>>>>>>>> [proto]:root:/opt/orientdb/benchmarks # ab -n1000 -A 
>>>>>>>> root:root_pass -k -c2 -p post.txt http://127.0.0.1:2480/document
>>>>>>>> /demo/9:1 
>>>>>>>> This is ApacheBench, Version 2.3 <$Revision: 1528965 $>
>>>>>>>> Copyright 1996 Adam Twiss, Zeus Technology Ltd, 
>>>>>>>> http://www.zeustech.net/
>>>>>>>> Licensed to The Apache Software Foundation, http://www.apache.org/
>>>>>>>>
>>>>>>>> Benchmarking 127.0.0.1 (be patient)
>>>>>>>> Completed 100 requests
>>>>>>>> Completed 200 requests
>>>>>>>> Completed 300 requests
>>>>>>>> Completed 400 requests
>>>>>>>> Completed 500 requests
>>>>>>>> Completed 600 requests
>>>>>>>> Completed 700 requests
>>>>>>>> Completed 800 requests
>>>>>>>> Completed 900 requests
>>>>>>>> Completed 1000 requests
>>>>>>>> Finished 1000 requests
>>>>>>>>
>>>>>>>>
>>>>>>>> Server Software:        OrientDB
>>>>>>>> Server Hostname:        127.0.0.1
>>>>>>>> Server Port:            2480
>>>>>>>>
>>>>>>>> Document Path:          /document/demo/9:1
>>>>>>>> Document Length:        123 bytes
>>>>>>>>
>>>>>>>> Concurrency Level:      2
>>>>>>>> Time taken for tests:   17.209 seconds
>>>>>>>> Complete requests:      1000
>>>>>>>> Failed requests:        0
>>>>>>>> Keep-Alive requests:    1000
>>>>>>>> Total transferred:      486503 bytes
>>>>>>>> Total body sent:        320000
>>>>>>>> HTML transferred:       123000 bytes
>>>>>>>> Requests per second:   * 58.11 *[#/sec] (mean)
>>>>>>>> Time per request:       34.419 [ms] (mean)
>>>>>>>> Time per request:       17.209 [ms] (mean, across all concurrent 
>>>>>>>> requests)
>>>>>>>> Transfer rate:          27.61 [Kbytes/sec] received
>>>>>>>>                         18.16 kb/s sent
>>>>>>>>                         45.77 kb/s total
>>>>>>>>
>>>>>>>> Connection Times (ms)
>>>>>>>>               min  mean[+/-sd] median   max
>>>>>>>> Connect:        0    0   0.3      0      10
>>>>>>>> Processing:    11   34  26.9     31     487
>>>>>>>> Waiting:       11   34  26.9     31     487
>>>>>>>> Total:         11   34  27.1     31     490
>>>>>>>>
>>>>>>>> Percentage of the requests served within a certain time (ms)
>>>>>>>>   50%     31
>>>>>>>>   66%     36
>>>>>>>>   75%     40
>>>>>>>>   80%     43
>>>>>>>>   90%     54
>>>>>>>>   95%     63
>>>>>>>>   98%     80
>>>>>>>>   99%     93
>>>>>>>>  100%    490 (longest request)
>>>>>>>> [proto]:root:/opt/orientdb/benchmarks # 
>>>>>>>> ...........
>>>>>>>>
>>>>>>>> So deleting from the table took too much :
>>>>>>>>
>>>>>>>> .....
>>>>>>>> orientdb {demo}> select count(*) from Devices;
>>>>>>>>
>>>>>>>> ----+------+-----
>>>>>>>> #   |@RID  |count
>>>>>>>> ----+------+-----
>>>>>>>> 0   |#-1:-1|8207 
>>>>>>>> ----+------+-----
>>>>>>>>
>>>>>>>> 1 item(s) found. Query executed in 0.017 sec(s).
>>>>>>>> orientdb {demo}> delete from Devices
>>>>>>>>
>>>>>>>> Delete record(s)* '8261' in 30.190001 sec(s).*
>>>>>>>>
>>>>>>>> orientdb {demo}> 
>>>>>>>> ........
>>>>>>>>
>>>>>>>>
>>>>>>>> Rus
>>>>>>>>
>>>>>>>> понедельник, 12 мая 2014 г., 19:16:41 UTC+3 пользователь Lvc@ 
>>>>>>>> написал:
>>>>>>>>>
>>>>>>>>> Hi,
>>>>>>>>> Can you run the server by trying a combination of these options 
>>>>>>>>> (edit bin/server.sh, last line)?
>>>>>>>>>
>>>>>>>>> -Djna.disable.system.library=true
>>>>>>>>> -Dmemory.useUnsafe=false
>>>>>>>>>
>>>>>>>>> Lvc@
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> Lvc@
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On 12 May 2014 18:06, Sfinx <[email protected]> wrote:
>>>>>>>>>
>>>>>>>>>> Hi,
>>>>>>>>>>
>>>>>>>>>> Ok, for the Oracle java version ["1.7.0_55" Java(TM) SE Runtime 
>>>>>>>>>> Environment (build 1.7.0_55-b13) Java HotSpot(TM) Client VM 
>>>>>>>>>> (build 24.55-b03, mixed mode)] I have the following results :
>>>>>>>>>>
>>>>>>>>>> - graph-example-2.xml insert time is *154536ms *- nearly the 
>>>>>>>>>> same as at 1.8.0
>>>>>>>>>> - the fault error still present :
>>>>>>>>>> .......
>>>>>>>>>> [proto]:root:/opt/orientdb/benchmarks # ab -n1000 -A 
>>>>>>>>>> root:root_pass -k -c10 -p post.txt http://127.0.0.1:2480/document
>>>>>>>>>> /demo/9:1 
>>>>>>>>>> This is ApacheBench, Version 2.3 <$Revision: 1528965 $>
>>>>>>>>>> Copyright 1996 Adam Twiss, Zeus Technology Ltd, 
>>>>>>>>>> http://www.zeustech.net/
>>>>>>>>>> Licensed to The Apache Software Foundation, 
>>>>>>>>>> http://www.apache.org/
>>>>>>>>>>
>>>>>>>>>> Benchmarking 127.0.0.1 (be patient)
>>>>>>>>>> Completed 100 requests
>>>>>>>>>> apr_pollset_poll: The timeout specified has expired (70007)
>>>>>>>>>> Total of 124 requests completed
>>>>>>>>>> [proto]:root:/opt/orientdb/benchmarks # 
>>>>>>>>>> ........
>>>>>>>>>> 2014-05-12 15:56:42:308 INFO OrientDB Server v1.7-SNAPSHOT is 
>>>>>>>>>> active. [OServer]
>>>>>>>>>> 2014-05-12 15:56:57:053 INFO - Rebuilding index 
>>>>>>>>>> demo.dictionary... [OIndexRebuildOutputListener]
>>>>>>>>>> 2014-05-12 15:56:57:066 INFO --> OK, indexed 0 items in 14 ms 
>>>>>>>>>> [OIndexRebuildOutputListener]
>>>>>>>>>> 2014-05-12 15:57:05:450 INFO Created database 'demo' of type 
>>>>>>>>>> 'plocal' [ONetworkProtocolBinary]
>>>>>>>>>> 2014-05-12 15:58:40:951 SEVE Internal server error:
>>>>>>>>>> java.lang.InternalError: a fault occurred in a recent unsafe 
>>>>>>>>>> memory access operation in compiled Java code 
>>>>>>>>>> [ONetworkProtocolHttpDb]
>>>>>>>>>> ........
>>>>>>>>>>
>>>>>>>>>> I see that fault error happens sporadically even when using low 
>>>>>>>>>> "ab -n" numbers, but using high (>= 1000) will hang the server 
>>>>>>>>>> immediatly.
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> Rus
>>>>>>>>>>
>>>>>>>>>> понедельник, 12 мая 2014 г., 18:41:27 UTC+3 пользователь Lvc@ 
>>>>>>>>>> написал:
>>>>>>>>>>>
>>>>>>>>>>> Hi,
>>>>>>>>>>> That errors seems caused by JVM as internal... To understand if 
>>>>>>>>>>> it's Java8 or new snapshot, can you run new 1.7-snapshot against 
>>>>>>>>>>> JDK7?
>>>>>>>>>>>
>>>>>>>>>>> Lvc@
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> Lvc@
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> On 12 May 2014 17:33, Sfinx <[email protected]> wrote:
>>>>>>>>>>>
>>>>>>>>>>>>  the fault message never appears if I use "ab -n 100". using 
>>>>>>>>>>>> "ab -n 200" and higher immediatly triggers server hang.
>>>>>>>>>>>>  
>>>>>>>>>>>>
>>>>>>>>>>>>> .......
>>>>>>>>>>>>>  ab -n1000 -A root:root_pass -k -c2 -p post.txt 
>>>>>>>>>>>>> http://127.0.0.1:2480/document/demo/9:1
>>>>>>>>>>>>> This is ApacheBench, Version 2.3 <$Revision: 1528965 $>
>>>>>>>>>>>>> Copyright 1996 Adam Twiss, Zeus Technology Ltd, 
>>>>>>>>>>>>> http://www.zeustech.net/
>>>>>>>>>>>>> Licensed to The Apache Software Foundation, 
>>>>>>>>>>>>> http://www.apache.org/
>>>>>>>>>>>>>
>>>>>>>>>>>>> Benchmarking 127.0.0.1 (be patient)
>>>>>>>>>>>>> Completed 100 requests
>>>>>>>>>>>>> apr_pollset_poll: The timeout specified has expired (70007)
>>>>>>>>>>>>> Total of 184 requests completed
>>>>>>>>>>>>> ......
>>>>>>>>>>>>> 2014-05-12 14:56:14:208 SEVE Internal server error:
>>>>>>>>>>>>> java.lang.InternalError: a fault occurred in a recent unsafe 
>>>>>>>>>>>>> memory access operation in compiled Java code 
>>>>>>>>>>>>> [ONetworkProtocolHttpDb]
>>>>>>>>>>>>> ......
>>>>>>>>>>>>>
>>>>>>>>>>>>> The OrientDB server have been hunged, so restart needed.
>>>>>>>>>>>>>
>>>>>>>>>>>>  -- 
>>>>>>>>>>>>
>>>>>>>>>>>> --- 
>>>>>>>>>>>> You received this message because you are subscribed to the 
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>>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>  -- 
>>>>>>>>>>
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>>>>>>>>>>
>>>>>>>>>
>>>>>>>>>  -- 
>>>>>>>>
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>>>>>>>>
>>>>>>>
>>>>>>>  -- 
>>>>>
>>>>> --- 
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>>>>>
>>>>
>>>>
>>>>
>>>> -- 
>>>> Best regards,
>>>> Andrey Lomakin.
>>>>
>>>> Orient Technologies
>>>> the Company behind OrientDB
>>>>
>>>>  
>>>
>>>
>>> -- 
>>> Best regards,
>>> Andrey Lomakin.
>>>
>>> Orient Technologies
>>> the Company behind OrientDB
>>>
>>>   -- 
>>
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>

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