MELVYL SYSTEM TELNET STATISTICS
Time period: 04/14/01 through 04/20/01
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 Library Remote Total
________ _______ ______ _____
Berkeley 2,255 6,241 8,496
Davis 4,362 491 4,853
Irvine 2,070 0 2,070
Los Angeles 59 2,648 2,707
Riverside 860 368 1,228
San Diego 900 1,252 2,152
San Francisco 2,165 0 2,165
Santa Barbara 471 586 1,057
Santa Cruz 575 488 1,063
NRLF 0 0 0
SRLF 0 0 0
LBL 0 381 381
LLL 0 174 174
Los Alamos 0 6 6
Other - UC 47 688 735
CSL 0 129 129
CSU n/a 333 333
Stanford n/a 470 470
Other - Non UC n/a 9,129 9,129
_______ ______ _____
13,764 23,384 37,148
1.1.2 Active users
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Average number of active users in a 2 minute interval:
12-2 a.m. 11 12-2 p.m. 73
2-4 a.m. 11 2-4 p.m. 84
4-6 a.m. 10 4-6 p.m. 62
6-8 a.m. 12 6-8 p.m. 26
8-10 a.m. 48 8-10 p.m. 16
10-12 a.m. 77 10-12 p.m. 12
Maximum of active users in a 2 minute interval:
For MELVYL system on 04/18/01 at 15:30:48 total number of users: 132
For MELVYL MEDLINE on 04/20/01 at 14:11:05 total number of users: 24
Total connect hours for MELVYL MEDLINE:
For UC users (hrs:mins) 722.00
For Non-UC users (hrs:mins) 38.63
1.1.3 FIND commands
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Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 7,651 19,023 26,674
Davis 15,019 1,354 16,373
Irvine 7,434 0 7,434
Los Angeles 113 7,879 7,992
Riverside 3,026 1,004 4,030
San Diego 2,291 3,065 5,356
San Francisco 6,839 0 6,839
Santa Barbara 1,452 1,512 2,964
Santa Cruz 2,535 1,521 4,056
NRLF 0 0 0
SRLF 0 0 0
LBL 0 826 826
LLL 0 1,080 1,080
Los Alamos 0 33 33
Other - UC 158 1,793 1,951
CSL 0 335 335
CSU n/a 1,505 1,505
Stanford n/a 1,563 1,563
Other - Non UC n/a 31,285 31,285
_______ ______ _____
46,518 73,778 120,296
Average number of FIND commands per hour:
12-2 a.m. 70 12-2 p.m. 763
2-4 a.m. 51 2-4 p.m. 847
4-6 a.m. 104 4-6 p.m. 577
6-8 a.m. 117 6-8 p.m. 229
8-10 a.m. 449 8-10 p.m. 164
10-12 a.m. 721 10-12 p.m. 112
Total number of FIND commands 120,296
Peak hourly load of 1,204 FIND commands occurred on 04/17/01 at 10 am
1.1.4 Records Displayed
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Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 67,958 185,164 253,122
Davis 102,844 7,953 110,797
Irvine 49,324 0 49,324
Los Angeles 740 77,178 77,918
Riverside 23,647 9,300 32,947
San Diego 13,146 28,894 42,040
San Francisco 66,003 0 66,003
Santa Barbara 14,319 20,463 34,782
Santa Cruz 15,792 13,442 29,234
NRLF 0 0 0
SRLF 0 0 0
LBL 0 9,890 9,890
LLL 0 14,257 14,257
Los Alamos 0 165 165
Other - UC 760 16,470 17,230
CSL 0 2,693 2,693
CSU n/a 13,974 13,974
Stanford n/a 14,063 14,063
Other - Non UC n/a 266,424 266,424
_______ ______ _____
354,533 680,330 1,034,863
Average number of records displayed per hour:
12-2 a.m. 1,270 12-2 p.m. 11,873
2-4 a.m. 690 2-4 p.m. 14,885
4-6 a.m. 1,062 4-6 p.m. 11,255
6-8 a.m. 2,786 6-8 p.m. 5,188
8-10 a.m. 8,258 8-10 p.m. 3,373
10-12 a.m. 12,597 10-12 p.m. 2,557
Total number of Records Displayed 1,034,863
Peak hourly load of 21,921 records displayed occurred on 04/18/01 at 3 pm
1.2 Relative Use of Databases
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Number of Number of % of System % of System
Database FIND Commands Records Displayed Sessions Searches
________ _____________ _________________ ___________ ___________
CAT 53,659 399,738 41.6% 44.6%
TEN 0 0 0.0% 0.0%
PE 4,728 46,048 3.9% 3.9%
ABI 662 932 0.6% 0.6%
BIOSIS 4,995 6,725 3.8% 4.2%
CC databases 9,171 94,292 8.4% 7.6%
CC 8,847 83,104 7.9% 7.4%
CCT 324 11,188 0.5% 0.3%
IAC databases 5,472 56,882 5.0% 4.5%
MAGS 4,707 51,140 4.2% 3.9%
NEWS 647 4,563 0.7% 0.5%
COMP 118 1,179 0.1% 0.1%
INS databases 3,500 33,052 4.3% 2.9%
INS 2,295 25,595 2.6% 1.9%
INS90 431 2,724 0.6% 0.4%
INS85 260 1,656 0.4% 0.2%
INS80 273 1,366 0.4% 0.2%
INS69 241 1,711 0.3% 0.2%
MED databases 20,525 197,335 19.7% 17.1%
MED 16,255 173,245 14.2% 13.5%
MED90 1,784 9,806 2.3% 1.5%
MED85 985 5,625 1.3% 0.8%
MED80 685 3,646 0.9% 0.6%
MED75 449 2,881 0.6% 0.4%
MED66 367 2,132 0.4% 0.3%
PSYC 4,600 6,656 3.0% 3.8%
OCLC 11,404 16,229 8.0% 9.5%
RLG 1,143 1,290 1.2% 1.0%
1.3 USE command
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Number of USE commands issued by system (numbers are attempts to connect):
Library Remote Total
_______ ______ _____
Licensed Systems:
Congressional Quarterly 0 0 0
ERIC (Stanford) 24 36 60
GEOREF (Stanford) 26 112 138
Hispanic American Periodicals Index 0 0 0
OCLC FirstSearch 0 0 0
RLG Eureka 106 105 211
Arizona State University 2 0 2
Boston University 1 1 2
California State Library 0 2 2
Cal Poly, San Luis Obispo 0 0 0
Cal State Long Beach 0 0 0
Cal State Univ., Hayward 10 12 22
Cambridge University, England 0 0 0
CARL 1 1 2
CARL Uncover 1 12 13
Chicano/Latino Net Gopher 0 0 0
Claremont College 0 0 0
Cleveland Free-Net 0 0 0
Dartmouth College 0 0 0
DIALOG 2 16 18
DRA LC 0 0 0
Earthquake Engineering Abstracts 0 0 0
FS INFO 1 2 3
Harvard 0 0 0
Library of Congress (LOCIS) 0 7 7
Los Angeles Public Library 0 3 3
National Agricultural Library 1 4 5
NLM AIDSDBS 1 2 3
NLM Databases (Medlars) 0 2 2
Northern Regional Lib Facility 91 23 114
New York Public Library 0 0 0
OCEAN Information Center 0 0 0
OCLC Catalog 6 77 83
OCLC EPIC 0 0 0
Oxford University, England 0 0 0
Princeton 0 0 0
Rensselaer Polytechnic Institute 0 0 0
RLIN 36 99 135
San Francisco State University 0 0 0
San Jose State University 3 0 3
Santa Clara University (OSCAR) 0 0 0
Stanford University 6 44 50
SUNY Buffalo (BISON) 0 0 0
1.3 USE command (continued)
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Number of USE commands issued by system:
Library Remote Total
_______ ______ _____
UCB GLADIS 85 184 269
UCB INFOCAL 0 0 0
UCD Gopher 0 0 0
UCI ANTPAC 0 1 1
UCLA ORION 0 3 3
UCSC CRUZCAT 0 1 1
UCSC INFOSLUG 0 0 0
UCSD ROGER 1 0 1
UCSF Catalog 3 1 4
Univ. of Hawaii 0 0 0
Univ. of Tennessee 0 0 0
Univ. of Michigan 0 0 0
Univ. of New Mexico - Gen. Lib 0 0 0
Univ. of New Mexico 0 0 0
Univ. of Texas, Austin 1 0 1
Virginia Polytechnic Institute 0 0 0
Weather 1 1 2
WRLC 0 0 0
Yale 9 0 9
Other 3 0 3
_______ ______ _____
Total number of USE commands 421 751 1,169
1.4 Response time
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Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 0.7
Standard deviation in seconds 2.9
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.2
Standard deviation in seconds 0.4
1.5 Online Publications
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Current Cites 1
DLA Bulletin 3
Mynd of MELVYL 0
1.6 Search SET commands
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FIND SET 222
SAVE SET 266
RECALL SET 2
DELETE/CLEAR SET 4
1.7 Special Commands
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1.7.1 MAIL Commands
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Number of MAIL Commands 1,796
1.7.2 REQUEST Commands
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Number of REQUEST Commands 153
1.7.3 UPDATE Commands
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Number of UPDATE commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 0 1 1
Davis 0 0 0
Irvine 0 0 0
Los Angeles 0 2 2
Riverside 1 0 1
San Diego 0 0 0
San Francisco 1 0 1
Santa Barbara 0 0 0
Santa Cruz 0 0 0
NRLF 0 0 0
SRLF 0 0 0
LBL 0 0 0
LLL 0 0 0
Los Alamos 0 0 0
Other - UC 0 0 0
CSL 0 0 0
CSU n/a 0 0
Stanford n/a 0 0
Other - Non UC n/a 0 0
_______ ______ _____
2 3 5
1.7.4 Number of UPDATE commands by Database
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CAT 2
PE 0
TEN 0
CC databases 0
CC 0
CCT 0
IAC databases 0
MAGS 0
NEWS 0
COMP 0
MED 3
INS 0
PSYC 0
ABI 0
BIOSIS 0
1.7.5 Other UPDATE Commands
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Number of RENEW UPDATE commands 12
Number of DELETE UPDATE commands 0
Number of SET UPDATE commands 0
Number of REDO UPDATE commands 0
Total number of UPDATEs on 04/20/01 3,548
SYSmm/dd sys MELVYL SYSTEM TELNET STATISTICS (weekly)