MELVYL SYSTEM Z39.50 SERVER STATISTICS
Time period: 10/01/99 through 10/31/99
1.0 GENERAL STATISTICS (includes all databases)
________________________________________________
1.1 System load
________________
1.1.1 Total sessions:
______________________
Location Total
________ _____
Melvyl Web 674,356
Berkeley 2,179
Davis 2,200
Irvine 2,910
Los Angeles 1,434
Riverside 352
San Diego 12,022
San Francisco 2,435
Santa Barbara 994
Santa Cruz 3,238
NRLF 0
SRLF 0
LBL 423
LLL 225
Los Alamos 3
Other - UC 5,492
CSL 0
CSU 754
Stanford 1,569
Other - Non UC 111,886
_____
822,472
1.1.2 Active users
___________________
Average number of active users in a 2 minute interval:
12-2 a.m. 73 12-2 p.m. 315
2-4 a.m. 32 2-4 p.m. 372
4-6 a.m. 20 4-6 p.m. 320
6-8 a.m. 40 6-8 p.m. 196
8-10 a.m. 158 8-10 p.m. 182
10-12 a.m. 299 10-12 p.m. 143
Total connect hours for MELVYL MEDLINE:
For UC users (hrs:mins) 14212.63
For Non-UC users (hrs:mins) 351.93
1.1.3 FIND commands
____________________
Number of FIND commands issued by location:
Location Total
________ _____
Melvyl Web 1,228,788
Berkeley 5,652
Davis 4,836
Irvine 3,825
Los Angeles 3,828
Riverside 793
San Diego 14,444
San Francisco 6,065
Santa Barbara 2,414
Santa Cruz 3,531
NRLF 0
SRLF 0
LBL 714
LLL 452
Los Alamos 5
Other - UC 15,627
CSL 0
CSU 743
Stanford 2,384
Other - Non UC 144,789
_____
1,438,890
Average number of FIND commands per hour:
12-2 a.m. 707 12-2 p.m. 2,505
2-4 a.m. 356 2-4 p.m. 2,835
4-6 a.m. 262 4-6 p.m. 2,311
6-8 a.m. 477 6-8 p.m. 1,483
8-10 a.m. 1,418 8-10 p.m. 1,369
10-12 a.m. 2,447 10-12 p.m. 1,076
Total number of FIND commands
Peak hourly load of 5,250 FIND commands occurred on 10/12/99 at 11 am
1.1.4 Records Displayed
________________________
Number of Records Displayed by location:
Location Total
________ _____
Melvyl Web 40,279,030
Berkeley 176,338
Davis 67,383
Irvine 30,243
Los Angeles 67,838
Riverside 28,413
San Diego 42,471
San Francisco 80,960
Santa Barbara 25,627
Santa Cruz 15,309
NRLF 0
SRLF 0
LBL 10,330
LLL 6,796
Los Alamos 2
Other - UC 256,894
CSL 0
CSU 7,498
Stanford 21,155
Other - Non UC 1,838,216
_____
42,954,503
Average number of records displayed per hour:
12-2 a.m. 13,633 12-2 p.m. 65,277
2-4 a.m. 5,633 2-4 p.m. 74,255
4-6 a.m. 3,645 4-6 p.m. 62,250
6-8 a.m. 8,235 6-8 p.m. 38,973
8-10 a.m. 32,881 8-10 p.m. 37,679
10-12 a.m. 61,948 10-12 p.m. 28,965
Total number of Records Displayed
Peak hourly load of 163,528 records displayed occurred on 10/12/99 at 11 am
1.2 Relative Use of Databases
______________________________
Number of Number of % of System
Database FIND Commands Records Displayed Searches
________ _____________ _________________ ___________
CAT 612,532 15,629,913 42.6%
TEN 0 0 0.0%
PE 134,617 1,484,522 9.4%
ABI 14,285 134,892 1.0%
BIOSIS 39,574 321,613 2.8%
CC 53,186 1,192,194 3.7%
IAC databases 164,687 5,752,255 11.4%
MAGS 143,291 5,339,147 10.0%
NEWS 13,907 282,572 1.0%
COMP 7,489 130,536 0.5%
INS databases 72,487 2,099,203 5.0%
INS 37,421 1,769,072 2.6%
INS90 11,834 156,059 0.8%
INS85 8,590 69,941 0.6%
INS80 7,269 39,568 0.5%
INS69 7,373 64,563 0.5%
MED databases 277,142 12,046,331 19.3%
MED 170,784 10,441,364 11.9%
MED90 33,130 863,858 2.3%
MED85 22,320 347,196 1.6%
MED80 18,161 171,188 1.3%
MED75 16,283 112,579 1.1%
MED66 16,464 110,146 1.1%
PSYC 53,882 512,986 3.7%.
1.3 Response time
__________________
Search response time from receipt of search request
at CDL until transmission of search response:
Average in seconds 1.4
Standard deviation in seconds 8.2
Present response time from receipt of present request
at CDL until transmission of present response:
Average in seconds 0.5
Standard deviation in seconds 1.7.