On 02.02.2017 18:20, REIX, Tony wrote:

Hi Konstantin

I have an issue with pgbench. Any idea ?



Pgbench -s options specifies scale.
Scale 1000 corresponds to 1000 million rows and requires about 16Gb at disk.

# mkdir /tmp/PGS
 # chown pgstbf.staff /tmp/PGS

 # su pgstbf

 $ /opt/freeware/bin/*initdb* -D /tmp/PGS
The files belonging to this database system will be owned by user "pgstbf".
 This user must also own the server prcess.

 The database cluster will be initialized with locale "C".
 The default database encoding has accordingly been set to "SQL_ASCII".
 The default text search configuration will be set to "english".

 Data page checksums are disabled.

 fixing permissions on existing directory /tmp/PGS ... ok
 creating subdirectories ... ok
 selecting default max_connections ... 100
 selecting default shared_buffers ... 128MB
 selecting dynamic shared memory implementation ... posix
 creating configuration files ... ok
 running bootstrap script ... ok
 performing post-bootstrap initialization ... ok
 syncing data to disk ... ok

 WARNING: enabling "trust" authentication for local connections
You can change this by editing pg_hba.conf or using the option -A, or --auth-local and --auth-host, the next time you run initdb.

 Success. You can now start the database server using:


 $ /opt/freeware/bin/*pg_ctl* -D /tmp/PGS -l /tmp/PGS/logfile *start*
 server starting

 $ /opt/freeware/bin/pg_ctl -D /tmp/PGS -l /tmp/PGS/logfile status
  pg_ctl: server is running (PID: 11599920)
 /opt/freeware/bin/postgres_64 "-D" "/tmp/PGS"


 $ /usr/bin/*createdb* pgstbf
 $


 $ *pgbench* -i -s 1000
 creating tables...
 100000 of 100000000 tuples (0%) done (elapsed 0.29 s, remaining 288.09 s)
 ...
100000000 of 100000000 tuples (100%) done (elapsed 42.60 s, remaining 0.00 s) *ERROR: could not extend file "base/16384/24614": wrote only 7680 of 8192 bytes at block 131071**
** HINT:  Check free disk space.*
 CONTEXT:  COPY pgbench_accounts, line 7995584
 PQendcopy failed


After cleaning all /tmp/PGS and symlinking it to /home, where I have 6GB free, I've retried and I got nearly the same:


100000000 of 100000000 tuples (100%) done (elapsed 204.65 s, remaining 0.00 s) ERROR: could not extend file "base/16384/16397.6": *No space left on device*
 HINT:  Check free disk space.
 CONTEXT:  COPY pgbench_accounts, line 51235802
PQendcopy failed


*Do I need more than 6GB ???*


*Thanks*

*Tony*


$ df -k .
Filesystem    1024-blocks      Free %Used    Iused %Iused Mounted on
/dev/hd1         45088768   6719484   86%   946016    39% /home

bash-4.3$ pwd
/tmp/PGS

bash-4.3$ ll /tmp/PGS
lrwxrwxrwx 1 root system 10 Feb 2 08:43 /tmp/PGS -> /home/PGS/


$ df -k
Filesystem    1024-blocks      Free %Used    Iused %Iused Mounted on
/dev/hd4           524288    277284   48%    10733    14% /
/dev/hd2          6684672    148896   98%    49303    48% /usr
/dev/hd9var       2097152    314696   85%    24934    18% /var
/dev/hd3          3145728   2527532   20%      418     1% /tmp
*/dev/hd1         45088768   6719484   86%   946016    39% /home*
/dev/hd11admin      131072    130692    1%        7     1% /admin
/proc                   -         -    -         -     - /proc
/dev/hd10opt     65273856    829500   99%   938339    41% /opt
/dev/livedump 262144 261776 1% 4 1% /var/adm/ras/livedump
/aha                    -         -    -        18     1% /aha

$ cat logfile
LOG:  database system was shut down at 2017-02-02 09:08:31 CST
LOG:  MultiXact member wraparound protections are now enabled
LOG:  autovacuum launcher started
LOG:  database system is ready to accept connections
ERROR: could not extend file "base/16384/16397.6": No space left on device
HINT:  Check free disk space.
CONTEXT:  COPY pgbench_accounts, line 51235802
STATEMENT:  copy pgbench_accounts from stdin



$ *ulimit -a*
core file size          (blocks, -c) 1048575
data seg size           (kbytes, -d) 131072
*file size               (blocks, -f) unlimited*
max memory size         (kbytes, -m) 32768
open files                      (-n) 2000
pipe size            (512 bytes, -p) 64
stack size              (kbytes, -s) 32768
cpu time               (seconds, -t) unlimited
max user processes              (-u) unlimited
virtual memory          (kbytes, -v) unlimited


bash-4.3$ ll /tmp/PGS
lrwxrwxrwx 1 root system 10 Feb 2 08:43 /tmp/PGS -> /home/PGS/
bash-4.3$ ls -l
total 120
-rw-------    1 pgstbf   staff             4 Feb  2 09:08 PG_VERSION
drwx------    6 pgstbf   staff           256 Feb  2 09:09 base
drwx------    2 pgstbf   staff          4096 Feb  2 09:09 global
-rw-------    1 pgstbf   staff           410 Feb  2 09:13 logfile
drwx------    2 pgstbf   staff           256 Feb  2 09:08 pg_clog
drwx------    2 pgstbf   staff           256 Feb  2 09:08 pg_commit_ts
drwx------    2 pgstbf   staff           256 Feb  2 09:08 pg_dynshmem
-rw-------    1 pgstbf   staff          4462 Feb  2 09:08 pg_hba.conf
-rw-------    1 pgstbf   staff          1636 Feb  2 09:08 pg_ident.conf
drwx------    4 pgstbf   staff           256 Feb  2 09:08 pg_logical
drwx------    4 pgstbf   staff           256 Feb  2 09:08 pg_multixact
drwx------    2 pgstbf   staff           256 Feb  2 09:08 pg_notify
drwx------    2 pgstbf   staff           256 Feb  2 09:08 pg_replslot
drwx------    2 pgstbf   staff           256 Feb  2 09:08 pg_serial
drwx------    2 pgstbf   staff           256 Feb  2 09:08 pg_snapshots
drwx------    2 pgstbf   staff           256 Feb  2 09:08 pg_stat
drwx------    2 pgstbf   staff           256 Feb  2 09:17 pg_stat_tmp
drwx------    2 pgstbf   staff           256 Feb  2 09:08 pg_subtrans
drwx------    2 pgstbf   staff           256 Feb  2 09:08 pg_tblspc
drwx------    2 pgstbf   staff           256 Feb  2 09:08 pg_twophase
drwx------    3 pgstbf   staff           256 Feb  2 09:08 pg_xlog
-rw------- 1 pgstbf staff 88 Feb 2 09:08 postgresql.auto.conf
-rw-------    1 pgstbf   staff         22236 Feb  2 09:08 postgresql.conf
-rw-------    1 pgstbf   staff            46 Feb  2 09:08 postmaster.opts
-rw-------    1 pgstbf   staff            69 Feb  2 09:08 postmaster.pid
bash-4.3$ ls -l base
total 112
drwx------    2 pgstbf   staff         16384 Feb  2 09:08 1
drwx------    2 pgstbf   staff         12288 Feb  2 09:08 12407
drwx------    2 pgstbf   staff         12288 Feb  2 09:09 12408
drwx------    2 pgstbf   staff         16384 Feb  2 09:14 16384
bash-4.3$ ls -l base/16384/
total 15200
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 112
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 113
-rw-------    1 pgstbf   staff         57344 Feb  2 09:09 12243
-rw-------    1 pgstbf   staff         24576 Feb  2 09:09 12243_fsm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 12243_vm
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 12245
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 12247
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 12248
-rw-------    1 pgstbf   staff         24576 Feb  2 09:09 12248_fsm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 12248_vm
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 12250
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 12252
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 12253
-rw-------    1 pgstbf   staff         24576 Feb  2 09:09 12253_fsm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 12253_vm
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 12255
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 12257
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 12258
-rw-------    1 pgstbf   staff         24576 Feb  2 09:09 12258_fsm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 12258_vm
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 12260
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 12262
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 12263
-rw-------    1 pgstbf   staff         24576 Feb  2 09:09 12263_fsm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 12263_vm
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 12265
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 12267
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 12268
-rw-------    1 pgstbf   staff         24576 Feb  2 09:09 12268_fsm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 12268_vm
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 12270
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 12272
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 12273
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 12275
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 12277
-rw-------    1 pgstbf   staff         73728 Feb  2 09:14 1247
-rw-------    1 pgstbf   staff         24576 Feb  2 09:14 1247_fsm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:14 1247_vm
-rw-------    1 pgstbf   staff        368640 Feb  2 09:14 1249
-rw-------    1 pgstbf   staff         24576 Feb  2 09:14 1249_fsm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:14 1249_vm
-rw-------    1 pgstbf   staff        589824 Feb  2 09:09 1255
-rw-------    1 pgstbf   staff         24576 Feb  2 09:09 1255_fsm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 1255_vm
-rw-------    1 pgstbf   staff         90112 Feb  2 09:14 1259
-rw-------    1 pgstbf   staff         24576 Feb  2 09:09 1259_fsm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:14 1259_vm
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 1417
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 1417_vm
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 1418
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 1418_vm
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 16385
-rw-------    1 pgstbf   staff        450560 Feb  2 09:14 16388
-rw-------    1 pgstbf   staff         24576 Feb  2 09:09 16388_fsm
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 16391
-rw-------    1 pgstbf   staff         40960 Feb  2 09:14 16394
-rw-------    1 pgstbf   staff         24576 Feb  2 09:09 16394_fsm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 174
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 175
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 2187
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 2328
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 2328_vm
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 2336
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 2336_vm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 2337
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 2600
-rw-------    1 pgstbf   staff         24576 Feb  2 09:09 2600_fsm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 2600_vm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 2601
-rw-------    1 pgstbf   staff         24576 Feb  2 09:09 2601_fsm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 2601_vm
-rw-------    1 pgstbf   staff         49152 Feb  2 09:09 2602
-rw-------    1 pgstbf   staff         24576 Feb  2 09:09 2602_fsm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 2602_vm
-rw-------    1 pgstbf   staff         40960 Feb  2 09:09 2603
-rw-------    1 pgstbf   staff         24576 Feb  2 09:09 2603_fsm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 2603_vm
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 2604
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 2604_vm
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 2605
-rw-------    1 pgstbf   staff         24576 Feb  2 09:09 2605_fsm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 2605_vm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 2606
-rw-------    1 pgstbf   staff         24576 Feb  2 09:09 2606_fsm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 2606_vm
-rw-------    1 pgstbf   staff         24576 Feb  2 09:09 2607
-rw-------    1 pgstbf   staff         24576 Feb  2 09:09 2607_fsm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 2607_vm
-rw-------    1 pgstbf   staff        450560 Feb  2 09:14 2608
-rw-------    1 pgstbf   staff         24576 Feb  2 09:09 2608_fsm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:14 2608_vm
-rw-------    1 pgstbf   staff        278528 Feb  2 09:09 2609
-rw-------    1 pgstbf   staff         24576 Feb  2 09:09 2609_fsm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 2609_vm
-rw-------    1 pgstbf   staff         24576 Feb  2 09:09 2610
-rw-------    1 pgstbf   staff         24576 Feb  2 09:09 2610_fsm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 2610_vm
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 2611
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 2611_vm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 2612
-rw-------    1 pgstbf   staff         24576 Feb  2 09:09 2612_fsm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 2612_vm
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 2613
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 2613_vm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 2615
-rw-------    1 pgstbf   staff         24576 Feb  2 09:09 2615_fsm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 2615_vm
-rw-------    1 pgstbf   staff         24576 Feb  2 09:09 2616
-rw-------    1 pgstbf   staff         24576 Feb  2 09:09 2616_fsm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 2616_vm
-rw-------    1 pgstbf   staff        122880 Feb  2 09:09 2617
-rw-------    1 pgstbf   staff         24576 Feb  2 09:09 2617_fsm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 2617_vm
-rw-------    1 pgstbf   staff         98304 Feb  2 09:09 2618
-rw-------    1 pgstbf   staff         24576 Feb  2 09:09 2618_fsm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 2618_vm
-rw-------    1 pgstbf   staff        122880 Feb  2 09:14 2619
-rw-------    1 pgstbf   staff         24576 Feb  2 09:14 2619_fsm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:14 2619_vm
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 2620
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 2620_vm
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 2650
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 2651
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 2652
-rw-------    1 pgstbf   staff         40960 Feb  2 09:09 2653
-rw-------    1 pgstbf   staff         40960 Feb  2 09:09 2654
-rw-------    1 pgstbf   staff         40960 Feb  2 09:09 2655
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 2656
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 2657
-rw-------    1 pgstbf   staff        106496 Feb  2 09:14 2658
-rw-------    1 pgstbf   staff         73728 Feb  2 09:14 2659
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 2660
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 2661
-rw-------    1 pgstbf   staff         32768 Feb  2 09:14 2662
-rw-------    1 pgstbf   staff         40960 Feb  2 09:14 2663
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 2664
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 2665
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 2666
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 2667
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 2668
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 2669
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 2670
-rw-------    1 pgstbf   staff        319488 Feb  2 09:14 2673
-rw-------    1 pgstbf   staff        352256 Feb  2 09:14 2674
-rw-------    1 pgstbf   staff        172032 Feb  2 09:09 2675
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 2678
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 2679
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 2680
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 2681
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 2682
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 2683
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 2684
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 2685
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 2686
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 2687
-rw-------    1 pgstbf   staff         40960 Feb  2 09:09 2688
-rw-------    1 pgstbf   staff         40960 Feb  2 09:09 2689
-rw-------    1 pgstbf   staff         81920 Feb  2 09:09 2690
-rw-------    1 pgstbf   staff        253952 Feb  2 09:09 2691
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 2692
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 2693
-rw-------    1 pgstbf   staff         16384 Feb  2 09:14 2696
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 2699
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 2701
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 2702
-rw-------    1 pgstbf   staff         16384 Feb  2 09:14 2703
-rw-------    1 pgstbf   staff         40960 Feb  2 09:14 2704
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 2753
-rw-------    1 pgstbf   staff         24576 Feb  2 09:09 2753_fsm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 2753_vm
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 2754
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 2755
-rw-------    1 pgstbf   staff         32768 Feb  2 09:09 2756
-rw-------    1 pgstbf   staff         32768 Feb  2 09:09 2757
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 2830
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 2830_vm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 2831
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 2832
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 2832_vm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 2833
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 2834
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 2834_vm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 2835
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 2836
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 2836_vm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 2837
-rw-------    1 pgstbf   staff        385024 Feb  2 09:09 2838
-rw-------    1 pgstbf   staff         24576 Feb  2 09:09 2838_fsm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 2838_vm
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 2839
-rw-------    1 pgstbf   staff         24576 Feb  2 09:09 2840
-rw-------    1 pgstbf   staff         24576 Feb  2 09:09 2840_fsm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 2840_vm
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 2841
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 2995
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 2995_vm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 2996
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 3079
-rw-------    1 pgstbf   staff         24576 Feb  2 09:09 3079_fsm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 3079_vm
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 3080
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 3081
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 3085
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 3118
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 3118_vm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 3119
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 3164
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 3256
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 3256_vm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 3257
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 3258
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 3394
-rw-------    1 pgstbf   staff         24576 Feb  2 09:09 3394_fsm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 3394_vm
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 3395
-rw-------    1 pgstbf   staff         32768 Feb  2 09:14 3455
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 3456
-rw-------    1 pgstbf   staff         24576 Feb  2 09:09 3456_fsm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 3456_vm
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 3466
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 3466_vm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 3467
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 3468
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 3501
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 3501_vm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 3502
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 3503
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 3534
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 3541
-rw-------    1 pgstbf   staff         24576 Feb  2 09:09 3541_fsm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 3541_vm
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 3542
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 3574
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 3575
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 3576
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 3576_vm
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 3596
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 3596_vm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 3597
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 3598
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 3598_vm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 3599
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 3600
-rw-------    1 pgstbf   staff         24576 Feb  2 09:09 3600_fsm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 3600_vm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 3601
-rw-------    1 pgstbf   staff         24576 Feb  2 09:09 3601_fsm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 3601_vm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 3602
-rw-------    1 pgstbf   staff         24576 Feb  2 09:09 3602_fsm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 3602_vm
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 3603
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-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 3603_vm
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 3604
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 3605
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-rw-------    1 pgstbf   staff         32768 Feb  2 09:09 3609
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 3712
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-rw-------    1 pgstbf   staff         24576 Feb  2 09:09 3764_fsm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 3764_vm
-rw-------    1 pgstbf   staff         16384 Feb  2 09:09 3766
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-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 548
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 549
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 826
-rw-------    1 pgstbf   staff             0 Feb  2 09:09 826_vm
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 827
-rw-------    1 pgstbf   staff          8192 Feb  2 09:09 828
-rw-------    1 pgstbf   staff             4 Feb  2 09:09 PG_VERSION
-rw-------    1 pgstbf   staff           512 Feb  2 09:09 pg_filenode.map
-rw-------    1 pgstbf   staff        112660 Feb  2 09:09 pg_internal.init



Le 01/02/2017 à 21:26, Konstantin Knizhnik a écrit :
On 02/01/2017 08:30 PM, REIX, Tony wrote:

Hi Konstantin,

....

If you could*share scripts or instructions about the tests you are doing with pgbench*, I would reproduce here.


You do not need any script.
Just two simple commands.
One to initialize database:

pgbench -i -s 1000

And another to run benchmark itself:

pgbench -c 100 -j 20 -P 1 -T 1000000000
...

Regards,

Tony


Le 01/02/2017 à 16:59, Konstantin Knizhnik a écrit :
Hi Tony,

On 01.02.2017 18:42, REIX, Tony wrote:

Hi Konstantin

*XLC.*

I'm on AIX 7.1 for now.

I'm using this version of *XL**C v13*:

# xlc -qversion
IBM XL C/C++ for AIX, V13.1.3 (5725-C72, 5765-J07)
Version: 13.01.0003.0003

With this version, I have (at least, since I tested with "check" and not "check-world" at that time) 2 failing tests: create_aggregate , aggregates .


With the following *XLC v12* version, I have NO test failure:

# /usr/vac/bin/xlc -qversion
IBM XL C/C++ for AIX, V12.1 (5765-J02, 5725-C72)
Version: 12.01.0000.0016


So maybe you are not using XLC v13.1.3.3, rather another sub-version. Unless you are using more options for the configure ?


*Configure*.

What are the options that you give to the configure ?


export CC="/opt/IBM/xlc/13.1.3/bin/xlc"
export CFLAGS="-qarch=pwr8 -qtune=pwr8 -O2 -qalign=natural -q64 "
export LDFLAGS="-Wl,-bbigtoc,-b64"
export AR="/usr/bin/ar -X64"
export LD="/usr/bin/ld -b64 "
export NM="/usr/bin/nm -X64"
./configure --prefix="/opt/postgresql/xlc-debug/9.6"


*Hard load & 64 cores ?* OK. That clearly explains why I do not see this issue.


*pgbench ?* I wanted to run it. However, I'm still looking where to get it plus a guide for using it for testing.


pgbench is part of Postgres distributive (src/bin/pgbench)


I would add such tests when building my PostgreSQL RPMs on AIX. So any help is welcome !


*Performance*.

- Also, I'd like to compare PostgreSQL performance on AIX vs Linux/PPC64. Any idea how I should proceed ? Any PostgreSQL performance benchmark that I could find and use ? pgbench ?

pgbench is most widely used tool simulating OLTP workload. Certainly it is quite primitive and its results are rather artificial. TPC-C seems to be better choice. But the best case is to implement your own benchmark simulating actual workload of your real application.

- I'm interested in any information for improving the performance & quality of my PostgreSQM RPMs on AIX./(As I already said, BullFreeware RPMs for AIX are free and can be used by anyone, like Perzl RPMs are//.////My compa//ny (ATOS/Bull) sells IBM Power machines under the Escala brand s//ince ages (25 years this year)//)/.


*How to help ?*

How could I help for improving the quality and performance of PostgreSQL on AIX ?


We still have one open issue at AIX: see https://www.mail-archive.com/pgsql-hackers@postgresql.org/msg303094.html
It will be great if you can somehow help to fix this problem.



--
Konstantin Knizhnik
Postgres Professional:http://www.postgrespro.com
The Russian Postgres Company



--
Konstantin Knizhnik
Postgres Professional:http://www.postgrespro.com
The Russian Postgres Company


--
Konstantin Knizhnik
Postgres Professional: http://www.postgrespro.com
The Russian Postgres Company

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