MELVYL SYSTEM Z39.50 SERVER STATISTICS
Time period: 06/01/00 through 06/30/00
1.0 GENERAL STATISTICS (includes all databases)
________________________________________________
1.1 System load
________________
1.1.1 Total sessions:
______________________
Location Total
________ _____
Melvyl Web 605,062
Searchlight 84,460
Berkeley 3,663
Davis 3,331
Irvine 1,992
Los Angeles 2,389
Riverside 319
San Diego 7,638
San Francisco 2,902
Santa Barbara 807
Santa Cruz 342
NRLF 0
SRLF 0
LBL 382
LLL 215
Los Alamos 7
Other - UC 2,513
CSL 0
CSU 583
Stanford 1,409
Other - Non UC 132,227
_____
850,241
1.1.2 Active users
___________________
Average number of active users in a 2 minute interval:
12-2 a.m. 73 12-2 p.m. 278
2-4 a.m. 34 2-4 p.m. 339
4-6 a.m. 24 4-6 p.m. 298
6-8 a.m. 50 6-8 p.m. 161
8-10 a.m. 147 8-10 p.m. 128
10-12 a.m. 276 10-12 p.m. 118
Total connect hours for MELVYL MEDLINE:
For UC users (hrs:mins) 13609.37
For Non-UC users (hrs:mins) 320.77
1.1.3 FIND commands
____________________
Number of FIND commands issued by location:
Location Total
________ _____
Melvyl Web 949,386
Searchlight 70,105
Berkeley 13,581
Davis 6,776
Irvine 2,588
Los Angeles 4,920
Riverside 789
San Diego 11,362
San Francisco 6,417
Santa Barbara 1,692
Santa Cruz 880
NRLF 0
SRLF 0
LBL 798
LLL 456
Los Alamos 8
Other - UC 7,289
CSL 0
CSU 842
Stanford 2,006
Other - Non UC 155,595
_____
1,235,490
Average number of FIND commands per hour:
12-2 a.m. 856 12-2 p.m. 2,206
2-4 a.m. 458 2-4 p.m. 2,581
4-6 a.m. 409 4-6 p.m. 2,037
6-8 a.m. 647 6-8 p.m. 1,186
8-10 a.m. 1,397 8-10 p.m. 961
10-12 a.m. 2,148 10-12 p.m. 917
Total number of FIND commands
Peak hourly load of 4,300 FIND commands occurred on 06/23/00 at 3 pm
1.1.4 Records Displayed
________________________
Number of Records Displayed by location:
Location Total
________ _____
Melvyl Web 29,566,859
Searchlight 441,907
Berkeley 115,730
Davis 84,794
Irvine 12,765
Los Angeles 60,836
Riverside 10,968
San Diego 78,777
San Francisco 71,369
Santa Barbara 25,888
Santa Cruz 13,371
NRLF 0
SRLF 0
LBL 19,418
LLL 18,119
Los Alamos 85
Other - UC 114,703
CSL 0
CSU 7,711
Stanford 19,666
Other - Non UC 1,629,342
_____
32,292,308
Average number of records displayed per hour:
12-2 a.m. 14,505 12-2 p.m. 47,656
2-4 a.m. 6,362 2-4 p.m. 58,391
4-6 a.m. 5,640 4-6 p.m. 49,365
6-8 a.m. 9,968 6-8 p.m. 26,382
8-10 a.m. 30,832 8-10 p.m. 22,424
10-12 a.m. 47,497 10-12 p.m. 22,914
Total number of Records Displayed
Peak hourly load of 154,285 records displayed occurred on 06/20/00 at 8 am
1.2 Relative Use of Databases
______________________________
Number of Number of % of System
Database FIND Commands Records Displayed Searches
________ _____________ _________________ ___________
CAT 463,116 10,183,439 37.5%
TEN 0 0 0.0%
PE 119,410 2,606,918 9.7%
ABI 17,011 110,539 1.4%
BIOSIS 38,478 279,493 3.1%
CC 55,116 1,140,890 4.5%
IAC databases 104,413 2,949,007 8.5%
MAGS 86,027 2,714,694 7.0%
NEWS 12,609 168,717 1.0%
COMP 5,777 65,596 0.5%
INS databases 83,688 2,664,489 6.8%
INS 46,904 1,858,493 3.8%
INS90 11,858 343,062 1.0%
INS85 8,980 193,908 0.7%
INS80 7,848 131,385 0.6%
INS69 8,098 137,641 0.7%
MED databases 292,012 9,242,966 23.6%
MED 165,970 7,941,718 13.4%
MED90 36,656 679,239 3.0%
MED85 26,132 270,891 2.1%
MED80 22,334 149,528 1.8%
MED75 20,369 98,989 1.6%
MED66 20,551 102,601 1.7%
PSYC 46,791 369,612 3.8%.
1.3 Response time
__________________
Search response time from receipt of search request
at CDL until transmission of search response:
Average in seconds 1.2
Standard deviation in seconds 6.3
Present response time from receipt of present request
at CDL until transmission of present response:
Average in seconds 0.6
Standard deviation in seconds 1.9.
SSMmm/yy srv.sys MELVYL SYSTEM Z39.50 SERVER STATISTICS (monthly)