MELVYL SYSTEM Z39.50 SERVER STATISTICS
Time period: 08/01/00 through 08/31/00
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 537,030
Searchlight 100,594
Berkeley 2,232
Davis 3,568
Irvine 2,042
Los Angeles 2,987
Riverside 242
San Diego 6,221
San Francisco 3,485
Santa Barbara 782
Santa Cruz 429
NRLF 0
SRLF 0
LBL 424
LLL 209
Los Alamos 2
Other - UC 2,689
CSL 0
CSU 925
Stanford 1,230
Other - Non UC 110,127
_____
775,218
1.1.2 Active users
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Average number of active users in a 2 minute interval:
12-2 a.m. 53 12-2 p.m. 250
2-4 a.m. 24 2-4 p.m. 301
4-6 a.m. 21 4-6 p.m. 275
6-8 a.m. 45 6-8 p.m. 144
8-10 a.m. 155 8-10 p.m. 92
10-12 a.m. 289 10-12 p.m. 79
Total connect hours for MELVYL MEDLINE:
For UC users (hrs:mins) 14841.87
For Non-UC users (hrs:mins) 332.83
1.1.3 FIND commands
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Number of FIND commands issued by location:
Location Total
________ _____
Melvyl Web 841,840
Searchlight 92,151
Berkeley 12,945
Davis 8,092
Irvine 3,147
Los Angeles 5,706
Riverside 479
San Diego 8,961
San Francisco 7,355
Santa Barbara 2,146
Santa Cruz 1,392
NRLF 0
SRLF 0
LBL 757
LLL 537
Los Alamos 3
Other - UC 7,677
CSL 0
CSU 825
Stanford 1,550
Other - Non UC 146,908
_____
1,142,471
Average number of FIND commands per hour:
12-2 a.m. 673 12-2 p.m. 1,950
2-4 a.m. 346 2-4 p.m. 2,198
4-6 a.m. 359 4-6 p.m. 1,990
6-8 a.m. 607 6-8 p.m. 1,033
8-10 a.m. 1,455 8-10 p.m. 743
10-12 a.m. 2,328 10-12 p.m. 636
Total number of FIND commands
Peak hourly load of 5,148 FIND commands occurred on 08/05/00 at 4 pm
1.1.4 Records Displayed
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Number of Records Displayed by location:
Location Total
________ _____
Melvyl Web 26,537,228
Searchlight 586,606
Berkeley 87,649
Davis 80,193
Irvine 19,014
Los Angeles 97,114
Riverside 6,143
San Diego 63,171
San Francisco 87,822
Santa Barbara 28,584
Santa Cruz 16,334
NRLF 0
SRLF 0
LBL 7,765
LLL 13,348
Los Alamos 75
Other - UC 116,213
CSL 0
CSU 6,097
Stanford 15,370
Other - Non UC 1,496,616
_____
29,265,342
Average number of records displayed per hour:
12-2 a.m. 10,575 12-2 p.m. 44,426
2-4 a.m. 4,404 2-4 p.m. 52,910
4-6 a.m. 4,242 4-6 p.m. 46,399
6-8 a.m. 8,705 6-8 p.m. 23,232
8-10 a.m. 29,704 8-10 p.m. 16,214
10-12 a.m. 51,586 10-12 p.m. 14,525
Total number of Records Displayed
Peak hourly load of 118,802 records displayed occurred on 08/28/00 at 4 pm
1.2 Relative Use of Databases
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Number of Number of % of System
Database FIND Commands Records Displayed Searches
________ _____________ _________________ ___________
CAT 411,926 8,258,550 36.1%
TEN 0 0 0.0%
PE 111,728 2,660,661 9.8%
ABI 14,199 90,971 1.2%
BIOSIS 35,147 307,203 3.1%
CC 53,100 1,041,872 4.6%
IAC databases 67,632 1,742,616 5.9%
MAGS 54,221 1,619,418 4.7%
NEWS 8,618 72,025 0.8%
COMP 4,793 51,173 0.4%
INS databases 84,614 1,971,095 7.4%
INS 45,226 1,584,221 4.0%
INS90 12,096 129,349 1.1%
INS85 9,724 104,251 0.9%
INS80 8,626 62,751 0.8%
INS69 8,942 90,523 0.8%
MED databases 307,801 10,439,561 26.9%
MED 179,673 9,007,844 15.7%
MED90 37,375 805,771 3.3%
MED85 26,428 295,597 2.3%
MED80 22,577 145,566 2.0%
MED75 20,735 90,710 1.8%
MED66 21,013 94,073 1.8%
PSYC 40,903 331,083 3.6%.
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 0.9
Standard deviation in seconds 5.5
Present response time from receipt of present request
at CDL until transmission of present response:
Average in seconds 0.3
Standard deviation in seconds 1.0.
SSMmm/yy srv.sys MELVYL SYSTEM Z39.50 SERVER STATISTICS (monthly)