MELVYL SYSTEM Z39.50 SERVER STATISTICS
Time period: 04/01/02 through 04/30/02
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 666,864
Searchlight 143,599
Berkeley 1,999
Davis 3,179
Irvine 519
Los Angeles 1,426
Riverside 561
San Diego 1,088
San Francisco 546
Santa Barbara 814
Santa Cruz 522
NRLF 0
SRLF 0
LBL 236
LLL 231
Los Alamos 0
Other - UC 7,524
CSL 0
CSU 292
Stanford 658
Other - Non UC 222,454
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1,052,512
1.1.2 Active users
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Average number of active users in a 2 minute interval:
12-2 a.m. 100 12-2 p.m. 279
2-4 a.m. 48 2-4 p.m. 327
4-6 a.m. 36 4-6 p.m. 331
6-8 a.m. 71 6-8 p.m. 227
8-10 a.m. 191 8-10 p.m. 188
10-12 a.m. 309 10-12 p.m. 173
Total connect hours for MELVYL MEDLINE:
For UC users (hrs:mins) 0.00
For Non-UC users (hrs:mins) 0.00
1.1.3 FIND commands
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Number of FIND commands issued by location:
Location Total
________ _____
Melvyl Web 1,022,444
Searchlight 106,528
Berkeley 3,788
Davis 6,689
Irvine 917
Los Angeles 2,466
Riverside 931
San Diego 1,719
San Francisco 896
Santa Barbara 1,954
Santa Cruz 1,304
NRLF 0
SRLF 0
LBL 410
LLL 425
Los Alamos 0
Other - UC 12,970
CSL 0
CSU 575
Stanford 729
Other - Non UC 286,407
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1,451,152
Average number of FIND commands per hour:
12-2 a.m. 1,036 12-2 p.m. 2,034
2-4 a.m. 607 2-4 p.m. 2,208
4-6 a.m. 527 4-6 p.m. 2,108
6-8 a.m. 887 6-8 p.m. 1,558
8-10 a.m. 1,655 8-10 p.m. 1,336
10-12 a.m. 2,235 10-12 p.m. 1,331
Total number of FIND commands
Peak hourly load of 5,701 FIND commands occurred on 04/24/02 at 11 am
1.1.4 Records Displayed
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Number of Records Displayed by location:
Location Total
________ _____
Melvyl Web 28,385,570
Searchlight 152,433
Berkeley 66,114
Davis 80,998
Irvine 15,557
Los Angeles 90,519
Riverside 16,344
San Diego 19,193
San Francisco 8,706
Santa Barbara 26,202
Santa Cruz 23,425
NRLF 0
SRLF 0
LBL 7,765
LLL 7,448
Los Alamos 0
Other - UC 183,600
CSL 0
CSU 11,781
Stanford 4,190
Other - Non UC 3,040,114
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32,139,959
Average number of records displayed per hour:
12-2 a.m. 13,286 12-2 p.m. 43,087
2-4 a.m. 5,507 2-4 p.m. 46,526
4-6 a.m. 5,375 4-6 p.m. 46,298
6-8 a.m. 13,467 6-8 p.m. 31,486
8-10 a.m. 31,002 8-10 p.m. 26,821
10-12 a.m. 46,504 10-12 p.m. 22,804
Total number of Records Displayed
Peak hourly load of 113,836 records displayed occurred on 04/24/02 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 663,540 15,792,815 45.7%
TEN 0 0 0.0%
PE 293,627 4,349,931 20.2%
ABI 16,705 76,623 1.2%
BIOSIS 94,614 610,314 6.5%
CC 57,945 962,683 4.0%
IAC databases 122,319 3,096,062 8.4%
MAGS 100,073 2,926,672 6.9%
NEWS 13,392 124,108 0.9%
COMP 8,854 45,282 0.6%
INS databases 98,150 1,826,591 6.8%
INS 44,120 1,550,830 3.0%
INS90 15,251 112,730 1.1%
INS85 13,281 60,837 0.9%
INS80 12,603 37,383 0.9%
INS69 12,895 64,811 0.9%
MED databases 0 0 0.0%
MED 0 0 0.0%
MED90 0 0 0.0%
MED85 0 0 0.0%
MED80 0 0 0.0%
MED75 0 0 0.0%
MED66 0 0 0.0%
PSYC 85,533 684,490 5.9%.
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 0.7
Standard deviation in seconds 5.8
Present response time from receipt of present request
at CDL until transmission of present response:
Average in seconds 0.3
Standard deviation in seconds 2.3.
SSMmm/yy srv.sys MELVYL SYSTEM Z39.50 SERVER STATISTICS (monthly)