MELVYL SYSTEM Z39.50 SERVER STATISTICS
Time period: 05/01/00 through 05/31/00
1.0 GENERAL STATISTICS (includes all databases)
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1.1 System load
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1.1.1 Total sessions:
______________________
Location Total
________ _____
Melvyl Web 322,999
Searchlight 51,561
Berkeley 2,380
Davis 1,092
Irvine 942
Los Angeles 1,235
Riverside 92
San Diego 2,896
San Francisco 773
Santa Barbara 292
Santa Cruz 175
NRLF 0
SRLF 0
LBL 137
LLL 144
Los Alamos 2
Other - UC 947
CSL 0
CSU 151
Stanford 867
Other - Non UC 62,610
_____
449,295
1.1.2 Active users
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Average number of active users in a 2 minute interval:
12-2 a.m. 41 12-2 p.m. 130
2-4 a.m. 16 2-4 p.m. 155
4-6 a.m. 9 4-6 p.m. 146
6-8 a.m. 18 6-8 p.m. 88
8-10 a.m. 56 8-10 p.m. 94
10-12 a.m. 114 10-12 p.m. 82
Total connect hours for MELVYL MEDLINE:
For UC users (hrs:mins) 5960.77
For Non-UC users (hrs:mins) 150.43
1.1.3 FIND commands
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Number of FIND commands issued by location:
Location Total
________ _____
Melvyl Web 516,940
Searchlight 40,514
Berkeley 10,663
Davis 2,473
Irvine 1,162
Los Angeles 2,365
Riverside 147
San Diego 4,188
San Francisco 1,798
Santa Barbara 472
Santa Cruz 381
NRLF 0
SRLF 0
LBL 368
LLL 303
Los Alamos 4
Other - UC 2,786
CSL 0
CSU 168
Stanford 1,401
Other - Non UC 72,585
_____
658,718
Average number of FIND commands per hour:
12-2 a.m. 415 12-2 p.m. 988
2-4 a.m. 222 2-4 p.m. 1,153
4-6 a.m. 146 4-6 p.m. 1,034
6-8 a.m. 230 6-8 p.m. 642
8-10 a.m. 521 8-10 p.m. 709
10-12 a.m. 966 10-12 p.m. 597
Total number of FIND commands
Peak hourly load of 5,355 FIND commands occurred on 05/31/00 at 11 am
1.1.4 Records Displayed
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Number of Records Displayed by location:
Location Total
________ _____
Melvyl Web 16,054,262
Searchlight 245,119
Berkeley 61,905
Davis 26,388
Irvine 8,838
Los Angeles 31,198
Riverside 2,171
San Diego 30,901
San Francisco 18,920
Santa Barbara 4,149
Santa Cruz 3,221
NRLF 0
SRLF 0
LBL 2,798
LLL 4,482
Los Alamos 204
Other - UC 36,623
CSL 0
CSU 1,061
Stanford 11,616
Other - Non UC 629,117
_____
17,172,973
Average number of records displayed per hour:
12-2 a.m. 6,334 12-2 p.m. 22,883
2-4 a.m. 3,470 2-4 p.m. 26,741
4-6 a.m. 2,008 4-6 p.m. 24,666
6-8 a.m. 3,338 6-8 p.m. 16,387
8-10 a.m. 10,301 8-10 p.m. 17,760
10-12 a.m. 20,633 10-12 p.m. 14,416
Total number of Records Displayed
Peak hourly load of 114,628 records displayed occurred on 05/26/00 at 4 pm
1.2 Relative Use of Databases
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Number of Number of % of System
Database FIND Commands Records Displayed Searches
________ _____________ _________________ ___________
CAT 239,896 5,553,013 36.4%
TEN 0 0 0.0%
PE 60,798 1,161,082 9.2%
ABI 10,974 73,539 1.7%
BIOSIS 21,724 146,868 3.3%
CC 26,139 502,904 4.0%
IAC databases 84,321 2,674,525 12.8%
MAGS 70,535 2,483,871 10.7%
NEWS 10,203 140,068 1.5%
COMP 3,583 50,586 0.5%
INS databases 38,741 777,128 5.9%
INS 23,981 642,381 3.6%
INS90 4,715 59,275 0.7%
INS85 3,666 32,190 0.6%
INS80 3,176 17,845 0.5%
INS69 3,203 25,437 0.5%
MED databases 137,631 4,189,342 20.9%
MED 74,582 3,649,056 11.3%
MED90 17,147 285,302 2.6%
MED85 12,991 109,580 2.0%
MED80 11,578 58,135 1.8%
MED75 10,640 40,536 1.6%
MED66 10,693 46,733 1.6%
PSYC 30,686 246,251 4.7%.
1.3 Response time
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Search response time from receipt of search request
at CDL until transmission of search response:
Average in seconds 1.3
Standard deviation in seconds 6.8
Present response time from receipt of present request
at CDL until transmission of present response:
Average in seconds 0.8
Standard deviation in seconds 2.3.
SSMmm/yy srv.sys MELVYL SYSTEM Z39.50 SERVER STATISTICS (monthly)