MELVYL SYSTEM Z39.50 SERVER STATISTICS
Time period: 01/01/01 through 01/31/01
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 Total
________ _____
Melvyl Web 615,789
Searchlight 147,855
Berkeley 2,051
Davis 3,591
Irvine 2,043
Los Angeles 2,564
Riverside 338
San Diego 2,159
San Francisco 3,103
Santa Barbara 529
Santa Cruz 310
NRLF 0
SRLF 0
LBL 415
LLL 211
Los Alamos 1
Other - UC 4,451
CSL 0
CSU 423
Stanford 1,091
Other - Non UC 155,866
_____
942,790
1.1.2 Active users
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Average number of active users in a 2 minute interval:
12-2 a.m. 60 12-2 p.m. 298
2-4 a.m. 27 2-4 p.m. 333
4-6 a.m. 21 4-6 p.m. 305
6-8 a.m. 43 6-8 p.m. 177
8-10 a.m. 162 8-10 p.m. 141
10-12 a.m. 277 10-12 p.m. 120
Total connect hours for MELVYL MEDLINE:
For UC users (hrs:mins) 13743.33
For Non-UC users (hrs:mins) 315.93
1.1.3 FIND commands
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Number of FIND commands issued by location:
Location Total
________ _____
Melvyl Web 981,180
Searchlight 116,537
Berkeley 6,314
Davis 8,011
Irvine 2,878
Los Angeles 6,857
Riverside 721
San Diego 4,552
San Francisco 5,970
Santa Barbara 1,128
Santa Cruz 605
NRLF 0
SRLF 0
LBL 703
LLL 455
Los Alamos 1
Other - UC 9,312
CSL 0
CSU 726
Stanford 1,471
Other - Non UC 170,446
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1,317,867
Average number of FIND commands per hour:
12-2 a.m. 652 12-2 p.m. 2,208
2-4 a.m. 346 2-4 p.m. 2,465
4-6 a.m. 338 4-6 p.m. 2,085
6-8 a.m. 566 6-8 p.m. 1,251
8-10 a.m. 1,450 8-10 p.m. 1,017
10-12 a.m. 2,243 10-12 p.m. 893
Total number of FIND commands
Peak hourly load of 4,867 FIND commands occurred on 01/29/01 at 9 am
1.1.4 Records Displayed
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Number of Records Displayed by location:
Location Total
________ _____
Melvyl Web 31,303,846
Searchlight 142,956
Berkeley 144,045
Davis 105,417
Irvine 34,275
Los Angeles 71,749
Riverside 15,790
San Diego 38,385
San Francisco 58,177
Santa Barbara 16,985
Santa Cruz 8,647
NRLF 0
SRLF 0
LBL 10,850
LLL 6,078
Los Alamos 0
Other - UC 123,516
CSL 0
CSU 5,897
Stanford 11,726
Other - Non UC 1,444,652
_____
33,542,991
Average number of records displayed per hour:
12-2 a.m. 9,218 12-2 p.m. 51,425
2-4 a.m. 4,863 2-4 p.m. 57,479
4-6 a.m. 3,639 4-6 p.m. 48,635
6-8 a.m. 7,762 6-8 p.m. 28,737
8-10 a.m. 28,286 8-10 p.m. 25,466
10-12 a.m. 48,649 10-12 p.m. 19,659
Total number of Records Displayed
Peak hourly load of 109,255 records displayed occurred on 01/30/01 at 3 pm
1.2 Relative Use of Databases
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Number of Number of % of System
Database FIND Commands Records Displayed Searches
________ _____________ _________________ ___________
CAT 488,931 10,783,629 37.1%
TEN 0 0 0.0%
PE 133,979 2,632,854 10.2%
ABI 15,686 86,113 1.2%
BIOSIS 48,896 399,288 3.7%
CC 55,822 1,037,520 4.2%
IAC databases 117,085 3,303,472 8.9%
MAGS 99,110 3,103,981 7.5%
NEWS 12,480 132,559 0.9%
COMP 5,495 66,932 0.4%
INS databases 78,821 1,697,654 6.0%
INS 36,571 1,450,250 2.8%
INS90 12,425 106,893 0.9%
INS85 10,341 54,210 0.8%
INS80 9,700 33,567 0.7%
INS69 9,784 52,734 0.7%
MED databases 305,622 9,817,255 23.2%
MED 173,174 8,585,918 13.1%
MED90 36,620 669,018 2.8%
MED85 27,872 252,104 2.1%
MED80 23,823 134,170 1.8%
MED75 21,905 81,846 1.7%
MED66 22,228 94,199 1.7%
PSYC 57,482 450,620 4.4%.
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 1.1
Standard deviation in seconds 6.3
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)