MELVYL SYSTEM Z39.50 SERVER STATISTICS
Time period: 11/01/99 through 11/30/99
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 804,480
Berkeley 2,613
Davis 2,585
Irvine 2,518
Los Angeles 1,802
Riverside 298
San Diego 13,688
San Francisco 2,566
Santa Barbara 564
Santa Cruz 3,512
NRLF 0
SRLF 0
LBL 482
LLL 174
Los Alamos 0
Other - UC 6,566
CSL 0
CSU 754
Stanford 1,261
Other - Non UC 134,043
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977,906
1.1.2 Active users
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Average number of active users in a 2 minute interval:
12-2 a.m. 82 12-2 p.m. 345
2-4 a.m. 37 2-4 p.m. 415
4-6 a.m. 25 4-6 p.m. 362
6-8 a.m. 48 6-8 p.m. 211
8-10 a.m. 182 8-10 p.m. 210
10-12 a.m. 328 10-12 p.m. 171
Total connect hours for MELVYL MEDLINE:
For UC users (hrs:mins) 13753.93
For Non-UC users (hrs:mins) 477.87
1.1.3 FIND commands
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Number of FIND commands issued by location:
Location Total
________ _____
Melvyl Web 1,410,257
Berkeley 5,746
Davis 5,977
Irvine 3,673
Los Angeles 4,664
Riverside 689
San Diego 16,150
San Francisco 5,376
Santa Barbara 1,333
Santa Cruz 3,955
NRLF 0
SRLF 0
LBL 1,034
LLL 420
Los Alamos 0
Other - UC 19,789
CSL 0
CSU 626
Stanford 1,944
Other - Non UC 173,400
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1,655,033
Average number of FIND commands per hour:
12-2 a.m. 839 12-2 p.m. 2,858
2-4 a.m. 499 2-4 p.m. 3,271
4-6 a.m. 391 4-6 p.m. 2,656
6-8 a.m. 627 6-8 p.m. 1,544
8-10 a.m. 1,693 8-10 p.m. 1,572
10-12 a.m. 2,737 10-12 p.m. 1,288
Total number of FIND commands
Peak hourly load of 5,015 FIND commands occurred on 11/29/99 at 10 am
1.1.4 Records Displayed
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Number of Records Displayed by location:
Location Total
________ _____
Melvyl Web 46,274,604
Berkeley 79,797
Davis 97,407
Irvine 29,308
Los Angeles 63,531
Riverside 14,677
San Diego 43,451
San Francisco 61,738
Santa Barbara 23,217
Santa Cruz 9,762
NRLF 0
SRLF 0
LBL 13,589
LLL 7,083
Los Alamos 0
Other - UC 306,455
CSL 0
CSU 5,907
Stanford 19,026
Other - Non UC 1,981,057
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49,030,609
Average number of records displayed per hour:
12-2 a.m. 16,968 12-2 p.m. 72,627
2-4 a.m. 7,158 2-4 p.m. 83,573
4-6 a.m. 4,976 4-6 p.m. 72,297
6-8 a.m. 10,568 6-8 p.m. 43,584
8-10 a.m. 39,539 8-10 p.m. 44,011
10-12 a.m. 67,118 10-12 p.m. 32,753
Total number of Records Displayed
Peak hourly load of 133,594 records displayed occurred on 11/24/99 at 10 am
1.2 Relative Use of Databases
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Number of Number of % of System
Database FIND Commands Records Displayed Searches
________ _____________ _________________ ___________
CAT 695,791 17,719,950 42.0%
TEN 0 0 0.0%
PE 163,797 1,581,701 9.9%
ABI 19,723 181,665 1.2%
BIOSIS 53,388 423,596 3.2%
CC 58,009 1,339,938 3.5%
IAC databases 207,412 7,536,634 12.5%
MAGS 176,905 6,957,299 10.7%
NEWS 21,292 430,375 1.3%
COMP 9,215 148,960 0.6%
INS databases 75,235 2,218,482 4.5%
INS 38,441 1,858,266 2.3%
INS90 12,364 172,875 0.7%
INS85 8,962 78,797 0.5%
INS80 7,661 41,432 0.5%
INS69 7,807 67,112 0.5%
MED databases 294,347 12,340,959 17.8%
MED 176,812 10,588,549 10.7%
MED90 35,478 954,073 2.1%
MED85 24,543 343,302 1.5%
MED80 20,541 177,810 1.2%
MED75 18,450 127,441 1.1%
MED66 18,523 149,784 1.1%
PSYC 66,889 635,573 4.0%.
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 1.4
Standard deviation in seconds 7.7
Present response time from receipt of present request
at CDL until transmission of present response:
Average in seconds 0.5
Standard deviation in seconds 1.4.