MELVYL SYSTEM TELNET STATISTICS
Time period: 04/21/01 through 04/27/01
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 1,901 6,340 8,241
Davis 4,328 441 4,769
Irvine 1,819 0 1,819
Los Angeles 54 2,405 2,459
Riverside 747 383 1,130
San Diego 1,022 1,446 2,468
San Francisco 2,217 0 2,217
Santa Barbara 457 541 998
Santa Cruz 702 706 1,408
NRLF 0 0 0
SRLF 0 0 0
LBL 0 288 288
LLL 0 244 244
Los Alamos 0 3 3
Other - UC 65 826 891
CSL 0 124 124
CSU n/a 299 299
Stanford n/a 414 414
Other - Non UC n/a 9,335 9,335
_______ ______ _____
13,312 23,795 37,107
1.1.2 Active users
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Average number of active users in a 2 minute interval:
12-2 a.m. 8 12-2 p.m. 72
2-4 a.m. 8 2-4 p.m. 79
4-6 a.m. 7 4-6 p.m. 54
6-8 a.m. 11 6-8 p.m. 24
8-10 a.m. 47 8-10 p.m. 16
10-12 a.m. 78 10-12 p.m. 12
Maximum of active users in a 2 minute interval:
For MELVYL system on 04/25/01 at 11:14:43 total number of users: 140
For MELVYL MEDLINE on 04/23/01 at 10:36:33 total number of users: 23
Total connect hours for MELVYL MEDLINE:
For UC users (hrs:mins) 707.93
For Non-UC users (hrs:mins) 40.63
1.1.3 FIND commands
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Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 5,575 18,002 23,577
Davis 12,745 1,466 14,211
Irvine 5,414 0 5,414
Los Angeles 161 6,815 6,976
Riverside 2,559 1,177 3,736
San Diego 2,554 3,802 6,356
San Francisco 6,584 0 6,584
Santa Barbara 1,542 1,546 3,088
Santa Cruz 2,550 2,201 4,751
NRLF 0 0 0
SRLF 0 0 0
LBL 0 770 770
LLL 0 1,230 1,230
Los Alamos 0 10 10
Other - UC 88 2,449 2,537
CSL 0 326 326
CSU n/a 1,651 1,651
Stanford n/a 1,426 1,426
Other - Non UC n/a 33,323 33,323
_______ ______ _____
39,772 76,194 115,966
Average number of FIND commands per hour:
12-2 a.m. 78 12-2 p.m. 711
2-4 a.m. 70 2-4 p.m. 789
4-6 a.m. 77 4-6 p.m. 482
6-8 a.m. 108 6-8 p.m. 208
8-10 a.m. 439 8-10 p.m. 164
10-12 a.m. 672 10-12 p.m. 110
Total number of FIND commands 115,966
Peak hourly load of 1,306 FIND commands occurred on 04/26/01 at 2 pm
1.1.4 Records Displayed
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Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 47,789 165,405 213,194
Davis 188,235 9,310 197,545
Irvine 43,496 0 43,496
Los Angeles 761 78,834 79,595
Riverside 18,148 8,965 27,113
San Diego 15,569 35,039 50,608
San Francisco 60,353 0 60,353
Santa Barbara 12,828 17,112 29,940
Santa Cruz 17,899 16,554 34,453
NRLF 0 0 0
SRLF 0 0 0
LBL 0 10,535 10,535
LLL 0 15,525 15,525
Los Alamos 0 32 32
Other - UC 605 23,762 24,367
CSL 0 2,107 2,107
CSU n/a 16,335 16,335
Stanford n/a 13,702 13,702
Other - Non UC n/a 303,997 303,997
_______ ______ _____
405,683 717,214 1,122,897
Average number of records displayed per hour:
12-2 a.m. 1,306 12-2 p.m. 12,829
2-4 a.m. 900 2-4 p.m. 16,778
4-6 a.m. 889 4-6 p.m. 11,582
6-8 a.m. 1,862 6-8 p.m. 5,809
8-10 a.m. 9,414 8-10 p.m. 3,569
10-12 a.m. 13,236 10-12 p.m. 2,392
Total number of Records Displayed 1,122,897
Peak hourly load of 33,380 records displayed occurred on 04/21/01 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 49,937 391,414 41.1% 43.1%
TEN 0 0 0.0% 0.0%
PE 5,309 52,692 4.1% 4.6%
ABI 722 1,092 0.6% 0.6%
BIOSIS 4,058 4,501 3.5% 3.5%
CC databases 9,337 94,843 8.9% 8.1%
CC 9,107 86,942 8.3% 7.9%
CCT 230 7,901 0.6% 0.2%
IAC databases 4,936 56,548 4.9% 4.3%
MAGS 4,314 52,376 4.3% 3.7%
NEWS 423 2,726 0.4% 0.4%
COMP 199 1,446 0.2% 0.2%
INS databases 3,675 38,014 4.5% 3.2%
INS 2,547 28,068 2.8% 2.2%
INS90 398 3,249 0.6% 0.3%
INS85 255 2,030 0.4% 0.2%
INS80 251 2,573 0.4% 0.2%
INS69 224 2,094 0.3% 0.2%
MED databases 19,334 235,429 18.7% 16.7%
MED 15,532 197,639 13.7% 13.4%
MED90 1,723 16,591 2.3% 1.5%
MED85 914 10,097 1.2% 0.8%
MED80 550 5,012 0.8% 0.5%
MED75 352 3,609 0.5% 0.3%
MED66 263 2,481 0.3% 0.2%
PSYC 5,527 7,959 3.8% 4.8%
OCLC 11,766 15,954 8.5% 10.1%
RLG 1,099 1,271 1.1% 0.9%
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) 9 28 37
GEOREF (Stanford) 27 143 170
Hispanic American Periodicals Index 0 0 0
OCLC FirstSearch 0 0 0
RLG Eureka 102 121 223
Arizona State University 0 1 1
Boston University 1 3 4
California State Library 0 2 2
Cal Poly, San Luis Obispo 0 0 0
Cal State Long Beach 0 3 3
Cal State Univ., Hayward 5 10 15
Cambridge University, England 0 3 3
CARL 0 3 3
CARL Uncover 1 13 14
Chicano/Latino Net Gopher 0 0 0
Claremont College 0 0 0
Cleveland Free-Net 0 0 0
Dartmouth College 0 3 3
DIALOG 2 20 22
DRA LC 0 2 2
Earthquake Engineering Abstracts 0 0 0
FS INFO 2 1 3
Harvard 0 4 4
Library of Congress (LOCIS) 1 7 8
Los Angeles Public Library 0 4 4
National Agricultural Library 2 4 6
NLM AIDSDBS 2 3 5
NLM Databases (Medlars) 1 0 1
Northern Regional Lib Facility 65 31 96
New York Public Library 0 2 2
OCEAN Information Center 0 0 0
OCLC Catalog 10 54 64
OCLC EPIC 0 0 0
Oxford University, England 0 5 5
Princeton 0 3 3
Rensselaer Polytechnic Institute 0 0 0
RLIN 34 109 143
San Francisco State University 0 2 2
San Jose State University 2 0 2
Santa Clara University (OSCAR) 0 0 0
Stanford University 6 45 51
SUNY Buffalo (BISON) 0 3 3
1.3 USE command (continued)
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Number of USE commands issued by system:
Library Remote Total
_______ ______ _____
UCB GLADIS 70 114 184
UCB INFOCAL 0 0 0
UCD Gopher 0 0 0
UCI ANTPAC 3 3 6
UCLA ORION 0 1 1
UCSC CRUZCAT 1 4 5
UCSC INFOSLUG 0 0 0
UCSD ROGER 0 1 1
UCSF Catalog 7 3 10
Univ. of Hawaii 0 1 1
Univ. of Tennessee 0 1 1
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 0 4 4
Virginia Polytechnic Institute 0 0 0
Weather 0 2 2
WRLC 0 0 0
Yale 4 2 6
Other 0 2 2
_______ ______ _____
Total number of USE commands 357 770 1,125
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 2.7
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.2
Standard deviation in seconds 0.7
1.5 Online Publications
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Current Cites 0
DLA Bulletin 0
Mynd of MELVYL 0
1.6 Search SET commands
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FIND SET 250
SAVE SET 267
RECALL SET 2
DELETE/CLEAR SET 10
1.7 Special Commands
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1.7.1 MAIL Commands
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Number of MAIL Commands 2,111
1.7.2 REQUEST Commands
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Number of REQUEST Commands 152
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 0 0
Riverside 0 0 0
San Diego 0 0 0
San Francisco 4 0 4
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 1 1
_______ ______ _____
4 2 6
1.7.4 Number of UPDATE commands by Database
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CAT 0
PE 0
TEN 0
CC databases 2
CC 2
CCT 0
IAC databases 0
MAGS 0
NEWS 0
COMP 0
MED 3
INS 0
PSYC 0
ABI 0
BIOSIS 1
1.7.5 Other UPDATE Commands
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Number of RENEW UPDATE commands 11
Number of DELETE UPDATE commands 0
Number of SET UPDATE commands 2
Number of REDO UPDATE commands 0
Total number of UPDATEs on 04/27/01 3,530
SYSmm/dd sys MELVYL SYSTEM TELNET STATISTICS (weekly)