MELVYL SYSTEM Z39.50 SERVER STATISTICS
Time period: 07/01/00 through 07/31/00
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 544,735
Searchlight 92,193
Berkeley 2,281
Davis 4,586
Irvine 2,012
Los Angeles 2,865
Riverside 247
San Diego 6,840
San Francisco 3,041
Santa Barbara 1,551
Santa Cruz 406
NRLF 0
SRLF 0
LBL 365
LLL 188
Los Alamos 0
Other - UC 2,154
CSL 0
CSU 345
Stanford 1,263
Other - Non UC 106,503
_____
771,575
1.1.2 Active users
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Average number of active users in a 2 minute interval:
12-2 a.m. 57 12-2 p.m. 255
2-4 a.m. 27 2-4 p.m. 318
4-6 a.m. 21 4-6 p.m. 270
6-8 a.m. 46 6-8 p.m. 137
8-10 a.m. 157 8-10 p.m. 81
10-12 a.m. 265 10-12 p.m. 78
Total connect hours for MELVYL MEDLINE:
For UC users (hrs:mins) 13493.33
For Non-UC users (hrs:mins) 299.63
1.1.3 FIND commands
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Number of FIND commands issued by location:
Location Total
________ _____
Melvyl Web 856,862
Searchlight 69,087
Berkeley 237,481
Davis 7,195
Irvine 2,889
Los Angeles 5,322
Riverside 513
San Diego 9,588
San Francisco 6,412
Santa Barbara 2,718
Santa Cruz 876
NRLF 0
SRLF 0
LBL 618
LLL 477
Los Alamos 0
Other - UC 6,288
CSL 0
CSU 559
Stanford 1,681
Other - Non UC 136,536
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1,345,102
Average number of FIND commands per hour:
12-2 a.m. 1,087 12-2 p.m. 2,987
2-4 a.m. 457 2-4 p.m. 2,421
4-6 a.m. 338 4-6 p.m. 2,238
6-8 a.m. 597 6-8 p.m. 1,605
8-10 a.m. 1,804 8-10 p.m. 1,036
10-12 a.m. 2,652 10-12 p.m. 899
Total number of FIND commands
Peak hourly load of 21,297 FIND commands occurred on 07/26/00 at 7 pm
1.1.4 Records Displayed
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Number of Records Displayed by location:
Location Total
________ _____
Melvyl Web 26,333,406
Searchlight 453,486
Berkeley 311,354
Davis 102,447
Irvine 29,883
Los Angeles 63,663
Riverside 8,823
San Diego 57,075
San Francisco 67,393
Santa Barbara 35,997
Santa Cruz 19,269
NRLF 0
SRLF 0
LBL 7,047
LLL 21,912
Los Alamos 0
Other - UC 101,524
CSL 0
CSU 10,762
Stanford 17,751
Other - Non UC 1,276,011
_____
28,917,803
Average number of records displayed per hour:
12-2 a.m. 11,148 12-2 p.m. 45,920
2-4 a.m. 5,620 2-4 p.m. 55,764
4-6 a.m. 4,205 4-6 p.m. 46,605
6-8 a.m. 8,171 6-8 p.m. 23,565
8-10 a.m. 30,074 8-10 p.m. 14,465
10-12 a.m. 47,788 10-12 p.m. 13,621
Total number of Records Displayed
Peak hourly load of 118,999 records displayed occurred on 07/07/00 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 400,260 8,391,385 29.8%
TEN 0 0 0.0%
PE 106,542 2,382,446 7.9%
ABI 15,971 100,086 1.2%
BIOSIS 34,802 251,593 2.6%
CC 53,283 1,066,503 4.0%
IAC databases 86,314 2,466,041 6.4%
MAGS 70,711 2,297,200 5.3%
NEWS 10,502 115,504 0.8%
COMP 5,101 53,337 0.4%
INS databases 298,503 1,868,250 22.2%
INS 265,673 1,597,339 19.8%
INS90 10,264 114,794 0.8%
INS85 7,999 56,035 0.6%
INS80 7,069 39,979 0.5%
INS69 7,498 60,103 0.6%
MED databases 287,068 9,274,494 21.3%
MED 160,560 7,951,307 11.9%
MED90 36,119 690,371 2.7%
MED85 26,129 251,462 1.9%
MED80 22,493 151,002 1.7%
MED75 20,681 128,038 1.5%
MED66 21,086 102,314 1.6%
PSYC 46,716 384,324 3.5%.
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 1.2
Standard deviation in seconds 6.7
Present response time from receipt of present request
at CDL until transmission of present response:
Average in seconds 0.6
Standard deviation in seconds 2.9.
SSMmm/yy srv.sys MELVYL SYSTEM Z39.50 SERVER STATISTICS (monthly)