MELVYL SYSTEM Z39.50 SERVER STATISTICS
Time period: 12/01/99 through 12/31/99
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 433,537
Berkeley 1,389
Davis 1,806
Irvine 1,847
Los Angeles 1,511
Riverside 128
San Diego 10,365
San Francisco 2,000
Santa Barbara 374
Santa Cruz 1,317
NRLF 0
SRLF 0
LBL 447
LLL 137
Los Alamos 2
Other - UC 3,120
CSL 0
CSU 493
Stanford 1,181
Other - Non UC 95,362
_____
555,016
1.1.2 Active users
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Average number of active users in a 2 minute interval:
12-2 a.m. 54 12-2 p.m. 204
2-4 a.m. 27 2-4 p.m. 241
4-6 a.m. 20 4-6 p.m. 236
6-8 a.m. 34 6-8 p.m. 136
8-10 a.m. 105 8-10 p.m. 112
10-12 a.m. 192 10-12 p.m. 101
Total connect hours for MELVYL MEDLINE:
For UC users (hrs:mins) 9835.73
For Non-UC users (hrs:mins) 346.77
1.1.3 FIND commands
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Number of FIND commands issued by location:
Location Total
________ _____
Melvyl Web 825,821
Berkeley 3,731
Davis 3,766
Irvine 2,698
Los Angeles 4,534
Riverside 252
San Diego 12,879
San Francisco 4,850
Santa Barbara 862
Santa Cruz 2,099
NRLF 0
SRLF 0
LBL 955
LLL 344
Los Alamos 0
Other - UC 8,489
CSL 0
CSU 744
Stanford 2,058
Other - Non UC 117,102
_____
991,184
Average number of FIND commands per hour:
12-2 a.m. 625 12-2 p.m. 1,740
2-4 a.m. 377 2-4 p.m. 1,964
4-6 a.m. 295 4-6 p.m. 1,804
6-8 a.m. 459 6-8 p.m. 1,040
8-10 a.m. 1,028 8-10 p.m. 860
10-12 a.m. 1,651 10-12 p.m. 788
Total number of FIND commands
Peak hourly load of 4,448 FIND commands occurred on 12/16/99 at 11 am
1.1.4 Records Displayed
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Number of Records Displayed by location:
Location Total
________ _____
Melvyl Web 26,963,071
Berkeley 66,267
Davis 47,877
Irvine 20,654
Los Angeles 54,907
Riverside 5,071
San Diego 53,701
San Francisco 56,234
Santa Barbara 11,215
Santa Cruz 9,836
NRLF 0
SRLF 0
LBL 11,101
LLL 4,826
Los Alamos 0
Other - UC 116,802
CSL 0
CSU 10,232
Stanford 24,560
Other - Non UC 1,175,327
_____
28,631,681
Average number of records displayed per hour:
12-2 a.m. 10,027 12-2 p.m. 44,223
2-4 a.m. 4,919 2-4 p.m. 49,860
4-6 a.m. 3,689 4-6 p.m. 48,283
6-8 a.m. 7,220 6-8 p.m. 27,536
8-10 a.m. 22,287 8-10 p.m. 23,692
10-12 a.m. 40,214 10-12 p.m. 19,419
Total number of Records Displayed
Peak hourly load of 109,127 records displayed occurred on 12/03/99 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 424,666 10,464,449 42.8%
TEN 0 0 0.0%
PE 95,923 971,352 9.7%
ABI 10,696 91,751 1.1%
BIOSIS 26,842 202,394 2.7%
CC 39,383 990,609 4.0%
IAC databases 88,677 3,124,761 8.9%
MAGS 75,167 2,909,861 7.6%
NEWS 9,107 148,595 0.9%
COMP 4,403 66,305 0.4%
INS databases 53,541 1,524,838 5.4%
INS 27,014 1,257,469 2.7%
INS90 8,835 133,341 0.9%
INS85 6,497 52,312 0.7%
INS80 5,574 32,285 0.6%
INS69 5,621 49,431 0.6%
MED databases 206,994 8,491,944 20.9%
MED 120,758 7,155,450 12.2%
MED90 26,661 727,509 2.7%
MED85 18,110 268,994 1.8%
MED80 14,927 146,848 1.5%
MED75 13,248 93,931 1.3%
MED66 13,290 99,212 1.3%
PSYC 34,098 334,938 3.4%.
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 1.2
Standard deviation in seconds 7.9
Present response time from receipt of present request
at CDL until transmission of present response:
Average in seconds 0.4
Standard deviation in seconds 1.2.
SSMmm/yy srv.sys MELVYL SYSTEM Z39.50 SERVER STATISTICS (monthly)