Machine details
CPU	4 core
OS	suse linux 11.2
RAM	24GB
Scale factor	75	shared buffers	4GB
auto vacuum	off	wal_buffers	16MB
ckpt seg	256	ckpt interval	15min
server_encoding	SQL_ASCII	client_encoding	UTF8
lc_collate	C	lc_ctype	C
sync commit	off	Fill factor	80
Pgbench - org
CONFIGURATION
Clients	1		2		4
WAL PG LZ Mod code
	TPS	Xlog Diff (GB)	TPS	Xlog Diff (GB)	TPS	Xlog Diff (GB)
Run1	1603	1.47	3133	1.92	6117	2.85
Run2	1604	1.47	3097	1.93	6132	2.86
Run3	1602	1.47	3091	1.93	6097	2.85
Avg	1603	1.47	3107	1.93	6115.333	2.85
Head code
	TPS	Xlog Diff (GB)	TPS	Xlog Diff (GB)	TPS	Xlog Diff (GB)
Run1	1599	1.47	3041	1.93	6079	2.85
Run2	1600	1.47	3048	1.92	6046	2.85
Run3	1597	1.47	3091	1.92	6077	2.85
Avg	1598.666667	1.47	3060	1.92	6067.333	2.85
DIFF
	0.27%	0.00%	1.54%	0.17%	0.79%	0.12%
Pgbench - org
CONFIGURATION
Clients	1		2		4
WAL V10 code
	TPS	Xlog Diff (GB)	TPS	Xlog Diff (GB)	TPS	Xlog Diff (GB)
Run1	1601	1.48	3129	1.93	6102	2.88
Run2	1600	1.48	3121	1.93	6091	2.89
Run3	1593	1.48	3092	1.94	6094	2.89
Avg	1598	1.48	3114	1.93	6095.667	2.89
Head code
	TPS	Xlog Diff (GB)	TPS	Xlog Diff (GB)	TPS	Xlog Diff (GB)
Run1	1599	1.47	3041	1.93	6079	2.85
Run2	1600	1.47	3048	1.92	6046	2.85
Run3	1597	1.47	3091	1.92	6077	2.85
Avg	1598.666667	1.47	3060	1.92	6067.333	2.85
DIFF
	-0.04%	0.68%	1.76%	0.52%	0.47%	1.29%
Pgbench - 250
CONFIGURATION
Clients	1		2		4
WAL PG LZ Mod code
	TPS	Xlog Diff (GB)	TPS	Xlog Diff (GB)	TPS	Xlog Diff (GB)
Run1	1583	2.41	3032	2.91	6056	3.70
Run2	1584	2.41	3037	2.91	6068	3.71
Run3	1586	2.41	3085	2.90	6110	3.70
Avg	1584.333333	2.41	3051.333333	2.91	6078	3.70
Head code
	TPS	Xlog Diff (GB)	TPS	Xlog Diff (GB)	TPS	Xlog Diff (GB)
Run1	1583	2.55	3043	3.24	5826	5.93
Run2	1588	2.55	3064	3.25	5818	5.94
Run3	1582	2.55	3083	3.24	5789	5.88
Avg	1584.333333	2.55	3063.333333	3.24	5811	5.92
DIFF
	0.00%	-5.49%	-0.39%	-10.38%	4.59%	-37.41%
Pgbench - 250
CONFIGURATION
Clients	1		2		4
WAL V10 code
	TPS	Xlog Diff (GB)	TPS	Xlog Diff (GB)	TPS	Xlog Diff (GB)
Run1	1588	2.42	3024	2.93	6100	3.75
Run2	1588	2.42	3053	2.94	6093	3.75
Run3	1591	2.42	3116	2.92	6107	3.75
Avg	1589	2.42	3064.333333	2.93	6100	3.75
Head code
	TPS	Xlog Diff (GB)	TPS	Xlog Diff (GB)	TPS	Xlog Diff (GB)
Run1	1583	2.55	3043	3.24	5826	5.93
Run2	1588	2.55	3064	3.25	5818	5.94
Run3	1582	2.55	3083	3.24	5789	5.88
Avg	1584.333333	2.55	3063.333333	3.24	5811	5.92
DIFF
	0.29%	-5.10%	0.03%	-9.66%	4.97%	-36.62%
Machine details
CPU	4 core
OS	suse linux 11.2
RAM	24GB
Scale factor	30	shared buffers	4GB
auto vacuum	off	wal_buffers	16MB
ckpt seg	256	ckpt interval	15min
server_encoding	SQL_ASCII	client_encoding	UTF8
lc_collate	C	lc_ctype	C
sync commit	off	Fill factor	80
Pgbench - 1000
CONFIGURATION
Clients	1		2		4
WAL PG LZ Mod code
	TPS	Xlog Diff (GB)	TPS	Xlog Diff (GB)	TPS	Xlog Diff (GB)
Run1	1487	3.22	2769	4.12	5284	7.41
Run2	1487	3.22	2734	4.02	4850	7.21
Run3	1486	3.22	2725	4.09	4921	7.24
Avg	1486.666667	3.22	2742.666667	4.08	5018.333	7.29
Head code
	TPS	Xlog Diff (GB)	TPS	Xlog Diff (GB)	TPS	Xlog Diff (GB)
Run1	1488	3.66	2326	5.96	3966	9.59
Run2	1487	3.66	2317	6.02	3903	9.41
Run3	1487	3.66	2405	6.12	3983	9.63
Avg	1487.333333	3.66	2349.333333	6.03	3950.667	9.54
DIFF
	-0.04%	-12.02%	16.74%	-32.43%	27.02%	-23.65%
Pgbench - 1000
CONFIGURATION
Clients	1		2		4
WAL V10 code
	TPS	Xlog Diff (GB)	TPS	Xlog Diff (GB)	TPS	Xlog Diff (GB)
Run1	1487	3.24	2790	4.52	5025	7.37
Run2	1481	3.23	2869	4.61	5111	7.42
Run3	1485	3.24	2759	4.40	5226	7.47
Avg	1484.333333	3.24	2806	4.51	5120.667	7.42
Head code
	TPS	Xlog Diff (GB)	TPS	Xlog Diff (GB)	TPS	Xlog Diff (GB)
Run1	1488	3.66	2326	5.96	3966	9.59
Run2	1487	3.66	2317	6.02	3903	9.41
Run3	1487	3.66	2405	6.12	3983	9.63
Avg	1487.333333	3.66	2349.333333	6.03	3950.667	9.54
DIFF
	-0.20%	-11.57%	19.44%	-25.25%	29.62%	-22.25%