MELVYL SYSTEM TELNET STATISTICS
Time period: 04/01/00 through 04/30/00
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 Library Remote Total
________ _______ ______ _____
Berkeley 17,805 34,521 52,326
Davis 22,011 3,372 25,383
Irvine 13,363 0 13,363
Los Angeles 5,722 14,901 20,623
Riverside 6,257 2,271 8,528
San Diego 4,627 8,461 13,088
San Francisco 13,319 0 13,319
Santa Barbara 5,351 4,733 10,084
Santa Cruz 5,657 3,355 9,012
NRLF 0 0 0
SRLF 7 0 7
LBL 0 2,036 2,036
LLL 0 1,294 1,294
Los Alamos 0 51 51
Other - UC 603 4,136 4,739
CSL 0 830 830
CSU n/a 1,446 1,446
Stanford n/a 2,952 2,952
Other - Non UC n/a 40,452 40,452
_______ ______ _____
94,722 124,811 219,533
1.1.2 Active users
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Average number of active users in a 2 minute interval:
12-2 a.m. 13 12-2 p.m. 101
2-4 a.m. 10 2-4 p.m. 120
4-6 a.m. 8 4-6 p.m. 88
6-8 a.m. 12 6-8 p.m. 40
8-10 a.m. 55 8-10 p.m. 29
10-12 a.m. 99 10-12 p.m. 20
Total connect hours for MELVYL MEDLINE:
For UC users (hrs:mins) 4927.60
For Non-UC users (hrs:mins) 288.43
1.1.3 FIND commands
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Number of FIND commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 57,235 103,835 161,070
Davis 76,422 12,150 88,572
Irvine 40,941 0 40,941
Los Angeles 17,276 42,904 60,180
Riverside 22,731 6,360 29,091
San Diego 13,344 20,178 33,522
San Francisco 774,914 0 774,914
Santa Barbara 19,352 13,096 32,448
Santa Cruz 21,367 10,161 31,528
NRLF 0 0 0
SRLF 17 0 17
LBL 0 5,009 5,009
LLL 0 5,273 5,273
Los Alamos 0 194 194
Other - UC 844 13,753 14,597
CSL 0 2,530 2,530
CSU n/a 8,078 8,078
Stanford n/a 9,019 9,019
Other - Non UC n/a 152,530 152,530
_______ ______ _____
1,044,443 405,070 1,449,513
Average number of FIND commands per hour:
12-2 a.m. 501 12-2 p.m. 2,143
2-4 a.m. 360 2-4 p.m. 2,644
4-6 a.m. 198 4-6 p.m. 3,193
6-8 a.m. 127 6-8 p.m. 2,494
8-10 a.m. 801 8-10 p.m. 2,305
10-12 a.m. 2,115 10-12 p.m. 1,262
Total number of FIND commands 1,449,513
Peak hourly load of 20,981 FIND commands occurred on 04/06/00 at 6 pm
1.1.4 Records Displayed
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Number of Records Displayed by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 563,888 1,022,782 1,586,670
Davis 661,313 72,528 733,841
Irvine 377,437 0 377,437
Los Angeles 151,678 475,207 626,885
Riverside 196,756 71,948 268,704
San Diego 80,986 189,417 270,403
San Francisco 438,951 0 438,951
Santa Barbara 158,777 139,001 297,778
Santa Cruz 141,557 91,171 232,728
NRLF 0 0 0
SRLF 64 0 64
LBL 0 54,726 54,726
LLL 0 47,760 47,760
Los Alamos 0 2,102 2,102
Other - UC 14,248 132,136 146,384
CSL 0 13,901 13,901
CSU n/a 69,519 69,519
Stanford n/a 94,014 94,014
Other - Non UC n/a 1,290,093 1,290,093
_______ ______ _____
2,785,655 3,766,305 6,551,960
Average number of records displayed per hour:
12-2 a.m. 2,030 12-2 p.m. 19,588
2-4 a.m. 1,424 2-4 p.m. 23,131
4-6 a.m. 904 4-6 p.m. 16,887
6-8 a.m. 2,331 6-8 p.m. 8,470
8-10 a.m. 10,420 8-10 p.m. 5,745
10-12 a.m. 18,808 10-12 p.m. 3,883
Total number of Records Displayed 6,551,960
Peak hourly load of 39,596 records displayed occurred on 04/17/00 at 11 am
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 311,069 2,361,713 41.2% 21.5%
TEN 0 0 0.0% 0.0%
PE 19,304 187,766 2.8% 1.3%
ABI 4,691 7,714 0.7% 0.3%
BIOSIS 30,944 41,929 4.1% 2.1%
CC databases 58,981 586,872 9.0% 4.1%
CC 57,790 543,712 8.6% 4.0%
CCT 1,191 43,160 0.4% 0.1%
IAC databases 45,604 535,656 6.7% 3.1%
MAGS 40,378 480,589 5.7% 2.8%
NEWS 4,128 38,219 0.7% 0.3%
COMP 1,098 16,848 0.2% 0.1%
INS databases 22,202 186,752 4.6% 1.5%
INS 15,290 146,359 2.9% 1.1%
INS90 2,839 16,305 0.7% 0.2%
INS85 1,619 9,196 0.4% 0.1%
INS80 1,221 5,419 0.3% 0.1%
INS69 1,233 9,473 0.3% 0.1%
MED databases 862,869 1,431,747 19.9% 59.5%
MED 835,786 1,215,244 14.3% 57.7%
MED90 12,898 99,867 2.5% 0.9%
MED85 5,997 47,953 1.3% 0.4%
MED80 3,786 32,658 0.9% 0.3%
MED75 2,349 17,721 0.5% 0.2%
MED66 2,053 18,304 0.4% 0.1%
PSYC 30,202 50,510 3.5% 2.1%
OCLC 53,841 65,695 5.8% 3.7%
RLG 7,309 7,982 1.1% 0.5%
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) 181 220 401
GEOREF (Stanford) 213 804 1,017
Hispanic American Periodicals Index 0 0 0
OCLC FirstSearch 0 0 0
RLG Eureka 382 450 832
Arizona State University 6 15 21
Boston University 3 9 12
California State Library 5 18 23
Cal Poly, San Luis Obispo 0 0 0
Cal State Long Beach 1 3 4
Cal State Univ., Hayward 21 11 32
Cambridge University, England 4 12 16
CARL 1 13 14
CARL Uncover 34 43 77
Chicano/Latino Net Gopher 0 0 0
Claremont College 0 4 4
Cleveland Free-Net 4 1 5
Dartmouth College 1 2 3
DIALOG 9 174 183
DRA LC 26 4 30
Earthquake Engineering Abstracts 0 0 0
FS INFO 7 14 21
Harvard 1 30 31
Library of Congress (LOCIS) 25 45 70
Los Angeles Public Library 2 9 11
National Agricultural Library 17 17 34
NLM AIDSDBS 7 9 16
NLM Databases (Medlars) 82 35 117
Northern Regional Lib Facility 584 106 690
New York Public Library 2 36 38
OCEAN Information Center 0 0 0
OCLC Catalog 9 256 265
OCLC EPIC 2 0 2
Oxford University, England 4 32 36
Princeton 0 5 5
Rensselaer Polytechnic Institute 2 1 3
RLIN 267 323 590
San Francisco State University 2 2 4
San Jose State University 0 3 3
Santa Clara University (OSCAR) 0 0 0
Stanford University 35 472 507
SUNY Buffalo (BISON) 5 11 16
1.3 USE command (continued)
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Number of USE commands issued by system:
Library Remote Total
_______ ______ _____
UCB GLADIS 632 885 1,517
UCB INFOCAL 0 0 0
UCD Gopher 0 0 0
UCI ANTPAC 26 17 43
UCLA ORION 12 14 26
UCSC CRUZCAT 9 35 44
UCSC INFOSLUG 0 0 0
UCSD ROGER 16 21 37
UCSF Catalog 41 7 48
Univ. of Hawaii 1 0 1
Univ. of Tennessee 0 3 3
Univ. of Michigan 3 17 20
Univ. of New Mexico - Gen. Lib 0 0 0
Univ. of New Mexico 0 0 0
Univ. of Texas, Austin 7 6 13
Virginia Polytechnic Institute 0 5 5
Weather 3 11 14
WRLC 3 0 3
Yale 14 19 33
Other 18 3 21
_______ ______ _____
Total number of USE commands 2,729 4,232 6,958
1.4 Response time
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Search response time from receipt of command at
DLA until transmission of response:
Average in seconds 1.1
Standard deviation in seconds 3.6
Display response time from receipt of command at
DLA until transmission of a complete screen:
Average in seconds 0.2
Standard deviation in seconds 0.6
1.5 Online Publications
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Current Cites 1
DLA Bulletin 4
Mynd of MELVYL 0
1.6 Search SET commands
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FIND SET 1,451
SAVE SET 1,627
RECALL SET 25
DELETE/CLEAR SET 34
1.7 Special Commands
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1.7.1 MAIL Commands
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Number of MAIL Commands 14,333
1.7.2 REQUEST Commands
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Number of REQUEST Commands 1,438
1.7.3 UPDATE Commands
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Number of UPDATE commands issued by location:
Location Library Remote Total
________ _______ ______ _____
Berkeley 3 8 11
Davis 4 0 4
Irvine 0 0 0
Los Angeles 0 2 2
Riverside 0 0 0
San Diego 10 11 21
San Francisco 23 0 23
Santa Barbara 1 1 2
Santa Cruz 0 0 0
NRLF 0 0 0
SRLF 0 0 0
LBL 0 0 0
LLL 0 14 14
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 2 2
_______ ______ _____
41 38 79
1.7.4 Number of UPDATE commands by Database
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CAT 9
PE 2
TEN 0
CC databases 24
CC 14
CCT 10
IAC databases 1
MAGS 0
NEWS 1
COMP 0
MED 31
INS 3
PSYC 4
ABI 0
BIOSIS 4
1.7.5 Other UPDATE Commands
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Number of RENEW UPDATE commands 158
Number of DELETE UPDATE commands 0
Number of SET UPDATE commands 18
Number of REDO UPDATE commands 1
Total number of UPDATEs on 04/30/00 5,239
SYSmm/dd sys MELVYL SYSTEM TELNET STATISTICS (weekly)