MELVYL SYSTEM Z39.50 SERVER STATISTICS
Time period: 10/01/00 through 10/31/00
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 855,841
Searchlight 244,814
Berkeley 2,062
Davis 3,424
Irvine 2,580
Los Angeles 2,018
Riverside 374
San Diego 3,758
San Francisco 3,017
Santa Barbara 679
Santa Cruz 626
NRLF 0
SRLF 0
LBL 379
LLL 193
Los Alamos 12
Other - UC 4,290
CSL 0
CSU 758
Stanford 1,144
Other - Non UC 161,713
_____
1,287,682
1.1.2 Active users
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Average number of active users in a 2 minute interval:
12-2 a.m. 91 12-2 p.m. 389
2-4 a.m. 33 2-4 p.m. 450
4-6 a.m. 25 4-6 p.m. 405
6-8 a.m. 55 6-8 p.m. 239
8-10 a.m. 175 8-10 p.m. 214
10-12 a.m. 356 10-12 p.m. 173
Total connect hours for MELVYL MEDLINE:
For UC users (hrs:mins) 17272.13
For Non-UC users (hrs:mins) 337.63
1.1.3 FIND commands
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Number of FIND commands issued by location:
Location Total
________ _____
Melvyl Web 1,325,017
Searchlight 190,413
Berkeley 7,457
Davis 6,901
Irvine 3,470
Los Angeles 5,207
Riverside 823
San Diego 6,614
San Francisco 6,363
Santa Barbara 1,578
Santa Cruz 1,157
NRLF 0
SRLF 0
LBL 622
LLL 508
Los Alamos 11
Other - UC 15,148
CSL 0
CSU 973
Stanford 1,682
Other - Non UC 196,799
_____
1,770,743
Average number of FIND commands per hour:
12-2 a.m. 1,066 12-2 p.m. 2,969
2-4 a.m. 425 2-4 p.m. 3,220
4-6 a.m. 388 4-6 p.m. 2,782
6-8 a.m. 720 6-8 p.m. 1,712
8-10 a.m. 1,534 8-10 p.m. 1,551
10-12 a.m. 2,797 10-12 p.m. 1,281
Total number of FIND commands
Peak hourly load of 4,984 FIND commands occurred on 10/25/00 at 2 pm
1.1.4 Records Displayed
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Number of Records Displayed by location:
Location Total
________ _____
Melvyl Web 42,762,164
Searchlight 458,796
Berkeley 76,768
Davis 94,145
Irvine 34,456
Los Angeles 66,707
Riverside 11,799
San Diego 55,253
San Francisco 123,834
Santa Barbara 23,450
Santa Cruz 20,931
NRLF 0
SRLF 0
LBL 7,156
LLL 6,730
Los Alamos 133
Other - UC 227,443
CSL 0
CSU 11,194
Stanford 17,386
Other - Non UC 1,935,348
_____
45,933,693
Average number of records displayed per hour:
12-2 a.m. 15,855 12-2 p.m. 66,937
2-4 a.m. 6,107 2-4 p.m. 78,513
4-6 a.m. 5,233 4-6 p.m. 65,483
6-8 a.m. 10,816 6-8 p.m. 40,357
8-10 a.m. 32,977 8-10 p.m. 35,621
10-12 a.m. 61,387 10-12 p.m. 28,001
Total number of Records Displayed
Peak hourly load of 119,695 records displayed occurred on 10/24/00 at 10 am
1.2 Relative Use of Databases
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Number of Number of % of System
Database FIND Commands Records Displayed Searches
________ _____________ _________________ ___________
CAT 645,178 14,650,770 36.4%
TEN 0 0 0.0%
PE 181,259 3,815,529 10.2%
ABI 24,935 135,046 1.4%
BIOSIS 60,451 404,079 3.4%
CC 71,800 1,391,681 4.1%
IAC databases 182,050 5,026,928 10.3%
MAGS 150,985 4,722,475 8.5%
NEWS 21,060 202,319 1.2%
COMP 10,005 102,134 0.6%
INS databases 110,108 2,097,594 6.2%
INS 49,960 1,777,741 2.8%
INS90 17,193 144,755 1.0%
INS85 14,255 67,778 0.8%
INS80 13,704 38,026 0.8%
INS69 14,996 69,294 0.8%
MED databases 384,910 13,094,258 21.7%
MED 218,680 11,687,112 12.3%
MED90 44,899 786,681 2.5%
MED85 33,903 273,962 1.9%
MED80 30,060 148,833 1.7%
MED75 28,455 99,538 1.6%
MED66 28,913 98,132 1.6%
PSYC 87,203 683,299 4.9%.
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 1.0
Standard deviation in seconds 5.6
Present response time from receipt of present request
at CDL until transmission of present response:
Average in seconds 0.4
Standard deviation in seconds 1.5.
SSMmm/yy srv.sys MELVYL SYSTEM Z39.50 SERVER STATISTICS (monthly)