MELVYL SYSTEM Z39.50 SERVER STATISTICS
Time period: 01/01/00 through 01/31/00
1.0 GENERAL STATISTICS (includes all databases)
________________________________________________
1.1 System load
________________
1.1.1 Total sessions:
______________________
Location Total
________ _____
Melvyl Web 682,037
Berkeley 1,937
Davis 3,604
Irvine 2,518
Los Angeles 1,999
Riverside 358
San Diego 11,022
San Francisco 2,782
Santa Barbara 318
Santa Cruz 866
NRLF 0
SRLF 0
LBL 591
LLL 335
Los Alamos 2
Other - UC 4,260
CSL 0
CSU 467
Stanford 1,818
Other - Non UC 130,549
_____
845,463
1.1.2 Active users
___________________
Average number of active users in a 2 minute interval:
12-2 a.m. 58 12-2 p.m. 284
2-4 a.m. 29 2-4 p.m. 341
4-6 a.m. 22 4-6 p.m. 300
6-8 a.m. 42 6-8 p.m. 156
8-10 a.m. 138 8-10 p.m. 131
10-12 a.m. 273 10-12 p.m. 120
Total connect hours for MELVYL MEDLINE:
For UC users (hrs:mins) 13805.80
For Non-UC users (hrs:mins) 477.67
1.1.3 FIND commands
____________________
Number of FIND commands issued by location:
Location Total
________ _____
Melvyl Web 1,167,457
Berkeley 4,130
Davis 8,038
Irvine 3,507
Los Angeles 5,354
Riverside 857
San Diego 13,204
San Francisco 7,011
Santa Barbara 631
Santa Cruz 1,511
NRLF 0
SRLF 0
LBL 1,542
LLL 595
Los Alamos 1
Other - UC 9,542
CSL 0
CSU 931
Stanford 2,710
Other - Non UC 142,103
_____
1,369,124
Average number of FIND commands per hour:
12-2 a.m. 653 12-2 p.m. 2,403
2-4 a.m. 395 2-4 p.m. 2,774
4-6 a.m. 276 4-6 p.m. 2,300
6-8 a.m. 503 6-8 p.m. 1,228
8-10 a.m. 1,331 8-10 p.m. 1,044
10-12 a.m. 2,364 10-12 p.m. 972
Total number of FIND commands
Peak hourly load of 5,355 FIND commands occurred on 01/06/00 at 2 pm
1.1.4 Records Displayed
________________________
Number of Records Displayed by location:
Location Total
________ _____
Melvyl Web 36,645,642
Berkeley 69,697
Davis 102,158
Irvine 24,439
Los Angeles 75,979
Riverside 17,168
San Diego 58,016
San Francisco 73,845
Santa Barbara 17,819
Santa Cruz 14,254
NRLF 0
SRLF 0
LBL 21,515
LLL 13,092
Los Alamos 26
Other - UC 128,344
CSL 0
CSU 7,550
Stanford 34,695
Other - Non UC 1,118,249
_____
38,422,488
Average number of records displayed per hour:
12-2 a.m. 13,422 12-2 p.m. 58,923
2-4 a.m. 6,537 2-4 p.m. 71,916
4-6 a.m. 3,677 4-6 p.m. 58,528
6-8 a.m. 8,206 6-8 p.m. 30,384
8-10 a.m. 30,246 8-10 p.m. 27,865
10-12 a.m. 58,076 10-12 p.m. 23,660
Total number of Records Displayed
Peak hourly load of 147,951 records displayed occurred on 01/07/00 at 2 pm
1.2 Relative Use of Databases
______________________________
Number of Number of % of System
Database FIND Commands Records Displayed Searches
________ _____________ _________________ ___________
CAT 537,989 13,193,535 39.3%
TEN 0 0 0.0%
PE 134,105 2,821,869 9.8%
ABI 17,435 97,516 1.3%
BIOSIS 41,230 307,765 3.0%
CC 64,793 1,345,203 4.7%
IAC databases 128,044 3,875,106 9.4%
MAGS 103,852 3,581,110 7.6%
NEWS 16,407 189,962 1.2%
COMP 7,785 104,034 0.6%
INS databases 70,841 2,094,485 5.2%
INS 37,608 1,755,133 2.7%
INS90 10,862 148,659 0.8%
INS85 8,199 70,848 0.6%
INS80 7,047 50,012 0.5%
INS69 7,125 69,833 0.5%
MED databases 309,284 11,348,790 22.6%
MED 176,878 9,799,531 12.9%
MED90 39,093 891,716 2.9%
MED85 27,294 295,357 2.0%
MED80 23,375 154,260 1.7%
MED75 21,270 107,315 1.6%
MED66 21,374 100,611 1.6%
PSYC 45,588 381,837 3.3%.
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 7.3
Present response time from receipt of present request
at CDL until transmission of present response:
Average in seconds 0.4
Standard deviation in seconds 1.1.
SSMmm/yy srv.sys MELVYL SYSTEM Z39.50 SERVER STATISTICS (monthly)