MELVYL SYSTEM Z39.50 SERVER STATISTICS
Time period: 11/01/01 through 11/30/01
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 0
Searchlight 128,262
Berkeley 2,776
Davis 3,979
Irvine 1,364
Los Angeles 3,948
Riverside 425
San Diego 1,540
San Francisco 2,102
Santa Barbara 901
Santa Cruz 453
NRLF 0
SRLF 0
LBL 390
LLL 293
Los Alamos 8
Other - UC 977,393
CSL 0
CSU 517
Stanford 1,251
Other - Non UC 238,523
_____
1,364,125
1.1.2 Active users
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Average number of active users in a 2 minute interval:
12-2 a.m. 107 12-2 p.m. 309
2-4 a.m. 48 2-4 p.m. 369
4-6 a.m. 39 4-6 p.m. 362
6-8 a.m. 69 6-8 p.m. 236
8-10 a.m. 176 8-10 p.m. 229
10-12 a.m. 318 10-12 p.m. 209
Total connect hours for MELVYL MEDLINE:
For UC users (hrs:mins) 9534.33
For Non-UC users (hrs:mins) 202.07
1.1.3 FIND commands
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Number of FIND commands issued by location:
Location Total
________ _____
Melvyl Web 0
Searchlight 127,981
Berkeley 6,655
Davis 7,057
Irvine 2,170
Los Angeles 8,136
Riverside 864
San Diego 3,448
San Francisco 3,776
Santa Barbara 1,838
Santa Cruz 970
NRLF 0
SRLF 0
LBL 714
LLL 957
Los Alamos 5
Other - UC 1,400,027
CSL 0
CSU 705
Stanford 1,608
Other - Non UC 304,619
_____
1,871,530
Average number of FIND commands per hour:
12-2 a.m. 1,161 12-2 p.m. 2,301
2-4 a.m. 689 2-4 p.m. 2,603
4-6 a.m. 577 4-6 p.m. 2,555
6-8 a.m. 925 6-8 p.m. 1,740
8-10 a.m. 1,593 8-10 p.m. 1,704
10-12 a.m. 2,526 10-12 p.m. 1,633
Total number of FIND commands
Peak hourly load of 6,805 FIND commands occurred on 11/08/01 at 11 am
1.1.4 Records Displayed
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Number of Records Displayed by location:
Location Total
________ _____
Melvyl Web 0
Searchlight 0
Berkeley 101,058
Davis 79,781
Irvine 28,287
Los Angeles 61,362
Riverside 18,679
San Diego 34,209
San Francisco 52,066
Santa Barbara 20,272
Santa Cruz 17,651
NRLF 0
SRLF 0
LBL 11,193
LLL 11,130
Los Alamos 2
Other - UC 42,567,335
CSL 0
CSU 9,904
Stanford 13,992
Other - Non UC 2,443,392
_____
45,470,313
Average number of records displayed per hour:
12-2 a.m. 19,023 12-2 p.m. 50,468
2-4 a.m. 9,580 2-4 p.m. 61,063
4-6 a.m. 6,944 4-6 p.m. 57,143
6-8 a.m. 11,358 6-8 p.m. 37,424
8-10 a.m. 30,870 8-10 p.m. 38,145
10-12 a.m. 51,194 10-12 p.m. 33,012
Total number of Records Displayed
Peak hourly load of 142,056 records displayed occurred on 11/08/01 at 11 am
1.2 Relative Use of Databases
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Number of Number of % of System
Database FIND Commands Records Displayed Searches
________ _____________ _________________ ___________
CAT 749,294 17,541,744 40.0%
TEN 0 0 0.0%
PE 266,225 4,225,401 14.2%
ABI 25,658 134,591 1.4%
BIOSIS 79,663 531,759 4.3%
CC 63,765 1,048,659 3.4%
IAC databases 192,795 5,576,067 10.3%
MAGS 163,961 5,222,691 8.8%
NEWS 20,661 229,557 1.1%
COMP 8,173 123,819 0.4%
INS databases 100,698 1,758,885 5.4%
INS 44,297 1,508,360 2.4%
INS90 16,116 115,334 0.9%
INS85 13,889 53,880 0.7%
INS80 12,967 32,403 0.7%
INS69 13,429 48,908 0.7%
MED databases 256,661 8,002,604 13.7%
MED 140,163 7,250,486 7.5%
MED90 29,168 392,678 1.6%
MED85 23,742 158,331 1.3%
MED80 21,703 84,790 1.2%
MED75 20,775 50,536 1.1%
MED66 21,110 65,783 1.1%
PSYC 118,513 891,973 6.3%.
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 1.0
Standard deviation in seconds 6.1
Present response time from receipt of present request
at CDL until transmission of present response:
Average in seconds 0.4
Standard deviation in seconds 1.3.
SSMmm/yy srv.sys MELVYL SYSTEM Z39.50 SERVER STATISTICS (monthly)