MELVYL SYSTEM Z39.50 SERVER STATISTICS
Time period: 12/01/01 through 12/31/01
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 0
Searchlight 51,631
Berkeley 1,917
Davis 3,648
Irvine 1,155
Los Angeles 1,708
Riverside 449
San Diego 3,056
San Francisco 1,574
Santa Barbara 1,015
Santa Cruz 766
NRLF 0
SRLF 0
LBL 250
LLL 276
Los Alamos 3
Other - UC 516,978
CSL 0
CSU 404
Stanford 552
Other - Non UC 173,159
_____
758,541
1.1.2 Active users
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Average number of active users in a 2 minute interval:
12-2 a.m. 66 12-2 p.m. 226
2-4 a.m. 33 2-4 p.m. 259
4-6 a.m. 26 4-6 p.m. 247
6-8 a.m. 46 6-8 p.m. 142
8-10 a.m. 131 8-10 p.m. 121
10-12 a.m. 222 10-12 p.m. 111
Total connect hours for MELVYL MEDLINE:
For UC users (hrs:mins) 6168.97
For Non-UC users (hrs:mins) 121.77
1.1.3 FIND commands
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Number of FIND commands issued by location:
Location Total
________ _____
Melvyl Web 0
Searchlight 51,587
Berkeley 4,394
Davis 6,827
Irvine 2,061
Los Angeles 3,340
Riverside 868
San Diego 4,679
San Francisco 3,169
Santa Barbara 1,857
Santa Cruz 1,784
NRLF 0
SRLF 0
LBL 446
LLL 1,093
Los Alamos 1
Other - UC 708,975
CSL 0
CSU 721
Stanford 797
Other - Non UC 215,716
_____
1,008,315
Average number of FIND commands per hour:
12-2 a.m. 756 12-2 p.m. 1,729
2-4 a.m. 433 2-4 p.m. 1,868
4-6 a.m. 364 4-6 p.m. 1,735
6-8 a.m. 538 6-8 p.m. 1,053
8-10 a.m. 1,151 8-10 p.m. 885
10-12 a.m. 1,737 10-12 p.m. 889
Total number of FIND commands
Peak hourly load of 4,805 FIND commands occurred on 12/07/01 at 3 pm
1.1.4 Records Displayed
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Number of Records Displayed by location:
Location Total
________ _____
Melvyl Web 0
Searchlight 0
Berkeley 51,536
Davis 91,645
Irvine 17,892
Los Angeles 48,619
Riverside 15,568
San Diego 28,675
San Francisco 54,343
Santa Barbara 26,388
Santa Cruz 14,711
NRLF 0
SRLF 0
LBL 10,031
LLL 11,533
Los Alamos 232
Other - UC 20,980,149
CSL 0
CSU 4,898
Stanford 7,619
Other - Non UC 1,738,410
_____
23,102,249
Average number of records displayed per hour:
12-2 a.m. 9,904 12-2 p.m. 36,819
2-4 a.m. 4,914 2-4 p.m. 41,617
4-6 a.m. 4,180 4-6 p.m. 36,871
6-8 a.m. 7,127 6-8 p.m. 21,684
8-10 a.m. 21,438 8-10 p.m. 19,843
10-12 a.m. 34,693 10-12 p.m. 16,747
Total number of Records Displayed
Peak hourly load of 119,883 records displayed occurred on 12/07/01 at 3 pm
1.2 Relative Use of Databases
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Number of Number of % of System
Database FIND Commands Records Displayed Searches
________ _____________ _________________ ___________
CAT 440,363 9,496,623 43.7%
TEN 0 0 0.0%
PE 152,012 2,458,386 15.1%
ABI 11,463 57,408 1.1%
BIOSIS 44,652 298,238 4.4%
CC 40,082 702,139 4.0%
IAC databases 70,142 1,914,046 7.0%
MAGS 58,934 1,822,249 5.8%
NEWS 7,763 69,841 0.8%
COMP 3,445 21,956 0.3%
INS databases 65,012 1,306,607 6.4%
INS 30,342 1,104,044 3.0%
INS90 10,058 83,111 1.0%
INS85 8,463 46,500 0.8%
INS80 7,889 27,611 0.8%
INS69 8,260 45,341 0.8%
MED databases 124,571 4,066,115 12.4%
MED 68,675 3,613,647 6.8%
MED90 14,559 234,191 1.4%
MED85 11,644 101,220 1.2%
MED80 10,283 48,036 1.0%
MED75 9,646 28,675 1.0%
MED66 9,764 40,346 1.0%
PSYC 50,442 360,916 5.0%.
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 0.8
Standard deviation in seconds 5.2
Present response time from receipt of present request
at CDL until transmission of present response:
Average in seconds 0.3
Standard deviation in seconds 1.3.
SSMmm/yy srv.sys MELVYL SYSTEM Z39.50 SERVER STATISTICS (monthly)