Re: Need some help on Performance 9.0.4
| От | akp geek |
|---|---|
| Тема | Re: Need some help on Performance 9.0.4 |
| Дата | |
| Msg-id | CACnhOfLyUgaBwupx9McbB-FXstm_BRj4XfGAtNjoTdT4O9DVrA@mail.gmail.com обсуждение исходный текст |
| Ответ на | Re: Need some help on Performance 9.0.4 (Tomas Vondra <tv@fuzzy.cz>) |
| Список | pgsql-general |
got the output from depesz and this the top on the system. thanks for the help ..
Regardsload averages: 30.3, 28.8, 27.8; up 680+00:51:09 18:24:44
156 processes: 123 sleeping, 33 on cpu
CPU states: 49.5% idle, 50.0% user, 0.4% kernel, 0.0% iowait, 0.0% swap
Memory: 64G phys mem, 19G free mem, 63G total swap, 63G free swap
PID USERNAME LWP PRI NICE SIZE RES STATE TIME CPU COMMAND
7965 postgres 1 20 0 3178M 3171M cpu/7 78:21 1.58% postgres
20638 postgres 1 20 0 3181M 3175M cpu/28 187:01 1.58% postgres
22819 postgres 1 30 0 3181M 3175M cpu/33 264:06 1.57% postgres
3789 postgres 1 20 0 3183M 3176M cpu/9 626:11 1.57% postgres
10375 postgres 1 30 0 3182M 3175M cpu/50 293:55 1.57% postgres
27335 postgres 1 30 0 3175M 3169M cpu/29 27:27 1.57% postgres
7959 postgres 1 30 0 3178M 3171M cpu/41 104:07 1.57% postgres
8156 postgres 1 30 0 3180M 3173M cpu/43 124:18 1.56% postgres
20640 postgres 1 0 0 3182M 3176M cpu/58 207:49 1.56% postgres
10584 postgres 1 30 0 3179M 3173M cpu/35 76:32 1.56% postgres
13984 postgres 1 30 0 3181M 3174M cpu/30 207:04 1.56% postgres
3575 postgres 1 20 0 3283M 3261M cpu/19 1:48 1.56% postgres
7964 postgres 1 40 0 3177M 3170M cpu/62 82:56 1.56% postgres
1299 postgres 1 40 0 3166M 3161M cpu/52 5:11 1.56% postgres
27692 postgres 1 0 0 3181M 3174M cpu/46 260:58 1.56% postgres
Hash Join (cost=343.930..63924.990 rows=1272 width=33) (actual time=1110.544..10759.808 rows=729 loops=1) Hash Cond: ((golf_papa.tango)::text = (romeo_quebec.tango)::text) -> Hash Join (cost=342.550..63896.580 rows=1272 width=19) (actual time=1110.409..10755.737 rows=729 loops=1) Hash Cond: (golf_papa.bravo = india_quebec.bravo) -> Hash Join (cost=243.350..63779.560 rows=2975 width=26) (actual time=1109.516..10752.258 rows=731 loops=1) Hash Cond: (golf_papa.india_golf = uniform_papa.india_golf) -> Nested Loop (cost=0.000..63369.970 rows=36399 width=33) (actual time=0.196..10737.785 rows=11204 loops=1) -> Nested Loop (cost=0.000..1639.760 rows=2751 width=15) (actual time=0.093..26.857 rows=3702 loops=1) Join Filter: (yankee.xray = charlie.xray) -> Seq Scan on delta charlie (cost=0.000..1.040 rows=1 width=14) (actual time=0.042..0.049 rows=1 loops=1) Filter: (romeo_lima = 10::numeric) -> Seq Scan on victor yankee (cost=0.000..1471.100 rows=13410 width=15) (actual time=0.015..17.272 rows=13410 loops=1) -> Index Scan using romeo_four on foxtrot golf_papa (cost=0.000..22.190 rows=20 width=34) (actual time=0.686..2.889 rows=3 loops=3702) Index Cond: (golf_papa.golf_foxtrot = yankee.lima_echo) Filter: (((golf_papa.tango)::text = ANY ('six_tango'::text[])) OR (((golf_papa.tango)::text = 'alpha'::text) AND (lima_sierra((golf_papa.whiskey_foxtrot)::time -> Hash (cost=240.310..240.310 rows=243 width=7) (actual time=4.068..4.068 rows=243 loops=1) Buckets: 1024 Batches: 1 Memory Usage: 8kB -> Seq Scan on six_november uniform_papa (cost=0.000..240.310 rows=243 width=7) (actual time=0.044..3.817 rows=243 loops=1) Filter: ((whiskey_whiskey)::text = 'echo'::text) -> Hash (cost=98.640..98.640 rows=45 width=29) (actual time=0.675..0.675 rows=45 loops=1) Buckets: 1024 Batches: 1 Memory Usage: 3kB -> Nested Loop (cost=0.000..98.640 rows=45 width=29) (actual time=0.154..0.597 rows=45 loops=1) -> Index Scan using whiskey_five on four two_yankee (cost=0.000..43.040 rows=45 width=22) (actual time=0.074..0.148 rows=45 loops=1) Index Cond: (lima_echo = 10::numeric) -> Index Scan using oscar on two_golf india_quebec (cost=0.000..1.220 rows=1 width=7) (actual time=0.007..0.008 rows=1 loops=45) Index Cond: (india_quebec.bravo = two_yankee.bravo) -> Hash (cost=1.170..1.170 rows=17 width=19) (actual time=0.026..0.026 rows=17 loops=1) Buckets: 1024 Batches: 1 Memory Usage: 1kB -> Seq Scan on uniform_victor romeo_quebec (cost=0.000..1.170 rows=17 width=19) (actual time=0.004..0.012 rows=17 loops=1) On Sun, Oct 13, 2013 at 8:17 PM, Tomas Vondra <tv@fuzzy.cz> wrote:
Hi,The postgresql.conf seems fine - at least I haven't noticed anything
On 13.10.2013 17:43, akp geek wrote:
> Sorry all not posting clear. I posted our postresql.conf file. What
> we are having is very slow response from the database.
>
> would like to get some feedback about postgresql.conf file
> parameters that I posted are causing the issue for performance of the
> DB.
>
> Our database is about 60GB and performance is very bad.
obviously wrong there. But we know almost nothing about your HW (not
even what kind of CPU / how many cores, etc.) or how you're using it.
For example you haven't even posted a complete top output, so we have no
idea what else is running on the box. OTOH the box seems to be rather
idle - there's plenty of CPU, RAM and the disks are rather idle.
Why exactly do you think it's the database that's slow?
We can't really help you unless you show us what exactly you consider
slow. The best thing you can probably do is to show us a slow query
along with it's EXPLAIN ANALYZE output (use explain.depesz.com to post it).
And it'd be nice to know the history around this - was it fast before,
did it get slow suddenly or over a longer period of time?
regards
Tomas
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