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K09 C-05G vs EG09 BestOf vs EG10 AMD


fozl
28-10-2010, 09:56
Quote Originally Posted by bartoll
Hello,
As it was written in the forum before, there are problems with the efficiency of hard drives. I carried out a few tests to compare old servers with a new EG AMD.
Moreover, one of the hard drives got out of RAID twice. After hard restart of a server everything always come back to normal. I'll only add that I checked processor, RAM , HDD and all is fine.

But efficiency of hard drives is my major concern at the moment.

Could anybody from OVH team , recommend what shall I do now?
What is the chance that the hard drives or mother board or whatever else are replaced so that the server works the way it is supposed to work?

...
Have you run our hardware check via the web interface yet? If not, please do so. Open a ticket, post the ticket number here if you'd like, then we can add the outputs you posted above to it to show the problem you've identified.

DigitalDaz
28-10-2010, 02:02
To do this test on my new EG10 AMD with hardare raid took 15 mins:

time `dd if=/dev/zero of=/vz/32G bs=16M count=2048; sync`

Thelen
28-10-2010, 00:24
TL;DR past the first post, but certainly you aren't the first person to complain and maybe there is some issue. Given how OVH rushed to get them out, no surprise they didn't test everything :P

bartoll
27-10-2010, 15:03
I/O scheduler set at deadline:

# cat /sys/block/sda/queue/scheduler
noop anticipatory [deadline] cfq

C-05G:
Code:
# pveperf /vz
CPU BOGOMIPS:      2400.08
REGEX/SECOND:      368536
HD SIZE:           435.06 GB (/dev/mapper/proxmox-vz)
BUFFERED READS:    59.40 MB/sec
AVERAGE SEEK TIME: 18.02 ms
FSYNCS/SECOND:     811.25
EG 09 BestOf:
Code:
# pveperf /vz
CPU BOGOMIPS:      22664.09
REGEX/SECOND:      683880
HD SIZE:           96.88 GB (/dev/mapper/pve-lv1)
BUFFERED READS:    82.41 MB/sec
AVERAGE SEEK TIME: 11.17 ms
FSYNCS/SECOND:     1027.19
EG 2010 AMD:
Code:
# pveperf /vz
CPU BOGOMIPS:      27602.41
REGEX/SECOND:      777761
HD SIZE:           96.88 GB (/dev/mapper/pve-lv)
BUFFERED READS:    109.20 MB/sec
AVERAGE SEEK TIME: 9.78 ms
FSYNCS/SECOND:     407.55


/sysbench --test=fileio --file-num=1 --file-total-size=50G --file-fsync-all=on --file-test-mode=seqrewr --max-time=100 --file-block-size=4096 --max-requests=0 run
sysbench 0.4.12: multi-threaded system evaluation benchmark

C-05G:
Code:
Operations performed:  0 Read, 237049 Write, 237049 Other = 474098 Total
Read 0b  Written 925.97Mb  Total transferred 925.97Mb  (9.2595Mb/sec)
 2370.44 Requests/sec executed

Test execution summary:
    total time:                          100.0019s
    total number of events:              237049
    total time taken by event execution: 99.5120
    per-request statistics:
         min:                                  0.16ms
         avg:                                  0.42ms
         max:                                 35.20ms
         approx.  95 percentile:               0.88ms

Threads fairness:
    events (avg/stddev):           237049.0000/0.00
    execution time (avg/stddev):   99.5120/0.00
EG 09 BestOf:
Code:
Operations performed:  0 Read, 258180 Write, 258180 Other = 516360 Total
Read 0b  Written 1008.5Mb  Total transferred 1008.5Mb  (10.085Mb/sec)
 2581.80 Requests/sec executed

Test execution summary:
    total time:                          100.0002s
    total number of events:              258180
    total time taken by event execution: 99.6546
    per-request statistics:
         min:                                  0.08ms
         avg:                                  0.39ms
         max:                                432.81ms
         approx.  95 percentile:               0.72ms

Threads fairness:
    events (avg/stddev):           258180.0000/0.00
    execution time (avg/stddev):   99.6546/0.00
EG 2010 AMD:
Code:
Operations performed:  0 Read, 175073 Write, 175073 Other = 350146 Total
Read 0b  Written 683.88Mb  Total transferred 683.88Mb  (6.8379Mb/sec)
 1750.50 Requests/sec executed

Test execution summary:
    total time:                          100.0134s
    total number of events:              175073
    total time taken by event execution: 99.8842
    per-request statistics:
         min:                                  0.10ms
         avg:                                  0.57ms
         max:                                333.14ms
         approx.  95 percentile:               2.48ms

Threads fairness:
    events (avg/stddev):           175073.0000/0.00
    execution time (avg/stddev):   99.8842/0.00


C-05G:
Code:
# time `dd if=/dev/zero of=/vz/4G bs=2M count=2048; sync`
2048+0 records in
2048+0 records out
4294967296 bytes (4.3 GB) copied, 55.6115 s, 77.2 MB/s

real	0m58.414s
user	0m0.012s
sys	0m24.058s
EG 09 BestOf:
Code:
# time `dd if=/dev/zero of=/vz/16G bs=8M count=2048; sync`
2048+0 records in
2048+0 records out
17179869184 bytes (17 GB) copied, 229.601 s, 74.8 MB/s

real	3m56.936s
user	0m0.016s
sys	0m37.942s
EG 2010 AMD:
Code:
# time `dd if=/dev/zero of=/vz/32G bs=16M count=2048; sync`
2048+0 records in
2048+0 records out
34359738368 bytes (34 GB) copied, 337.653 s, 102 MB/s

real	7m10.306s
user	0m0.012s
sys	1m8.148s

bartoll
27-10-2010, 15:02
I/O scheduler set at cfq:

# cat /sys/block/sda/queue/scheduler
noop anticipatory deadline [cfq]

C-05G:
Code:
# pveperf /vz
CPU BOGOMIPS:      2400.08
REGEX/SECOND:      359154
HD SIZE:           435.06 GB (/dev/mapper/proxmox-vz)
BUFFERED READS:    60.28 MB/sec
AVERAGE SEEK TIME: 18.75 ms
FSYNCS/SECOND:     789.14
EG 09 BestOf:
Code:
# pveperf /vz
CPU BOGOMIPS:      22664.09
REGEX/SECOND:      672427
HD SIZE:           96.88 GB (/dev/mapper/pve-lv1)
BUFFERED READS:    101.01 MB/sec
AVERAGE SEEK TIME: 11.74 ms
FSYNCS/SECOND:     1105.14
EG 2010 AMD:
Code:
# pveperf /vz
CPU BOGOMIPS:      27602.41
REGEX/SECOND:      760502
HD SIZE:           96.88 GB (/dev/mapper/pve-lv)
BUFFERED READS:    116.32 MB/sec
AVERAGE SEEK TIME: 9.33 ms
FSYNCS/SECOND:     110.81


/sysbench --test=fileio --file-num=1 --file-total-size=50G --file-fsync-all=on --file-test-mode=seqrewr --max-time=100 --file-block-size=4096 --max-requests=0 run
sysbench 0.4.12: multi-threaded system evaluation benchmark

C-05G:
Code:
Operations performed:  0 Read, 273869 Write, 273869 Other = 547738 Total
Read 0b  Written 1.0447Gb  Total transferred 1.0447Gb  (10.697Mb/sec)
 2738.44 Requests/sec executed

Test execution summary:
    total time:                          100.0090s
    total number of events:              273869
    total time taken by event execution: 99.5353
    per-request statistics:
         min:                                  0.17ms
         avg:                                  0.36ms
         max:                                587.28ms
         approx.  95 percentile:               0.89ms

Threads fairness:
    events (avg/stddev):           273869.0000/0.00
    execution time (avg/stddev):   99.5353/0.00
EG 09 BestOf:
Code:
Operations performed:  0 Read, 186316 Write, 186316 Other = 372632 Total
Read 0b  Written 727.8Mb  Total transferred 727.8Mb  (7.2779Mb/sec)
 1863.15 Requests/sec executed

Test execution summary:
    total time:                          100.0004s
    total number of events:              186316
    total time taken by event execution: 99.7181
    per-request statistics:
         min:                                  0.09ms
         avg:                                  0.54ms
         max:                                445.56ms
         approx.  95 percentile:               0.88ms

Threads fairness:
    events (avg/stddev):           186316.0000/0.00
    execution time (avg/stddev):   99.7181/0.00
EG 2010 AMD:
Code:
Operations performed:  0 Read, 123802 Write, 123802 Other = 247604 Total
Read 0b  Written 483.6Mb  Total transferred 483.6Mb  (4.836Mb/sec)
 1238.01 Requests/sec executed

Test execution summary:
    total time:                          100.0006s
    total number of events:              123802
    total time taken by event execution: 99.9101
    per-request statistics:
         min:                                  0.10ms
         avg:                                  0.81ms
         max:                                207.56ms
         approx.  95 percentile:               3.44ms

Threads fairness:
    events (avg/stddev):           123802.0000/0.00
    execution time (avg/stddev):   99.9101/0.00


C-05G:
Code:
# time `dd if=/dev/zero of=/vz/4G bs=2M count=2048; sync`
2048+0 records in
2048+0 records out
4294967296 bytes (4.3 GB) copied, 62.3095 s, 68.9 MB/s

real	1m3.153s
user	0m0.020s
sys	0m23.065s
EG 09 BestOf:
Code:
# time `dd if=/dev/zero of=/vz/16G bs=8M count=2048; sync`
2048+0 records in
2048+0 records out
17179869184 bytes (17 GB) copied, 224.724 s, 76.4 MB/s

real	4m24.442s
user	0m0.016s
sys	0m39.530s
EG 2010 AMD:
Code:
#time `dd if=/dev/zero of=/vz/32G bs=16M count=2048; sync`
2048+0 records in
2048+0 records out
34359738368 bytes (34 GB) copied, 332.184 s, 103 MB/s

real	6m11.485s
user	0m0.008s
sys	1m7.308s

bartoll
27-10-2010, 15:02
Hello,
As it was written in the forum before, there are problems with the efficiency of hard drives. I carried out a few tests to compare old servers with a new EG AMD.
Moreover, one of the hard drives got out of RAID twice. After hard restart of a server everything always come back to normal. I'll only add that I checked processor, RAM , HDD and all is fine.

But efficiency of hard drives is my major concern at the moment.

Could anybody from OVH team , recommend what shall I do now?
What is the chance that the hard drives or mother board or whatever else are replaced so that the server works the way it is supposed to work ?

Kimsufi 2009 C-05G:
Code:
1 x Intel(R) Celeron(R) CPU 220  @ 1.20GHz

Device Model:     Hitachi HDP725050GLA360
Serial Number:    GEA534RV0TP5HA
Firmware Version: GM4OA5CA
Power_On_Hours   - 8167

free -m
             total       used       free     shared    buffers     cached
Mem:          1972        215       1757          0         21         16
-/+ buffers/cache:        177       1795
Swap:         4095          2       4093

EG 2009 BestOf:
Code:
4 x Intel(R) Xeon(R) CPU  X3360  @ 2.83GHz
Device Model:     WDC WD7501AALS-00J7B0
Serial Number:    WD-WMATV1446489
Firmware Version: 05.00K05
Power_On_Hours - 10145

free -m
             total       used       free     shared    buffers     cached
Mem:          7875        869       7005          0        129        470
-/+ buffers/cache:        269       7606
Swap:        16189          0      16189
EG 2010 AMD:
Code:
6 x AMD Opteron(tm) Processor 4174 HE
Device Model:     ST31500341AS
Serial Number:    9VS4FSN1
Firmware Version: CC1H
Power_On_Hours 406

# free -m
             total       used       free     shared    buffers     cached
Mem:         16020        331      15688          0          3         17
-/+ buffers/cache:        310      15710
Swap:        16381         11      16370

# hdparm -tT /dev/sda

C-05G:
Code:
/dev/sda:
 Timing cached reads:   1160 MB in  2.00 seconds = 579.27 MB/sec
 Timing buffered disk reads:  190 MB in  3.01 seconds =  63.09 MB/sec
EG 09 BestOf:
Code:
/dev/sda:
 Timing cached reads:   13068 MB in  2.00 seconds = 6550.18 MB/sec
 Timing buffered disk reads:  270 MB in  3.01 seconds =  89.59 MB/sec
EG 2010 AMD:
Code:
/dev/sda:
 Timing cached reads:   6868 MB in  2.00 seconds = 3435.46 MB/sec
 Timing buffered disk reads:  360 MB in  3.01 seconds = 119.78 MB/sec