MELVYL SYSTEM Z39.50 SERVER STATISTICS
Time period: 06/01/01 through 06/30/01
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 380,125
Searchlight 132,190
Berkeley 2,186
Davis 3,730
Irvine 958
Los Angeles 2,706
Riverside 401
San Diego 2,453
San Francisco 2,893
Santa Barbara 881
Santa Cruz 402
NRLF 0
SRLF 0
LBL 284
LLL 124
Los Alamos 27
Other - UC 228,819
CSL 0
CSU 507
Stanford 837
Other - Non UC 194,477
_____
954,000
1.1.2 Active users
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Average number of active users in a 2 minute interval:
12-2 a.m. 86 12-2 p.m. 290
2-4 a.m. 43 2-4 p.m. 349
4-6 a.m. 29 4-6 p.m. 332
6-8 a.m. 56 6-8 p.m. 187
8-10 a.m. 158 8-10 p.m. 132
10-12 a.m. 293 10-12 p.m. 126
Total connect hours for MELVYL MEDLINE:
For UC users (hrs:mins) 14460.90
For Non-UC users (hrs:mins) 238.23
1.1.3 FIND commands
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Number of FIND commands issued by location:
Location Total
________ _____
Melvyl Web 604,615
Searchlight 107,398
Berkeley 5,932
Davis 7,609
Irvine 1,734
Los Angeles 5,341
Riverside 781
San Diego 4,753
San Francisco 7,104
Santa Barbara 1,912
Santa Cruz 756
NRLF 0
SRLF 0
LBL 562
LLL 231
Los Alamos 58
Other - UC 354,668
CSL 0
CSU 773
Stanford 1,141
Other - Non UC 246,619
_____
1,351,987
Average number of FIND commands per hour:
12-2 a.m. 1,083 12-2 p.m. 2,168
2-4 a.m. 623 2-4 p.m. 2,536
4-6 a.m. 562 4-6 p.m. 2,302
6-8 a.m. 831 6-8 p.m. 1,389
8-10 a.m. 1,515 8-10 p.m. 1,037
10-12 a.m. 2,331 10-12 p.m. 1,076
Total number of FIND commands
Peak hourly load of 4,753 FIND commands occurred on 06/18/01 at 4 pm
1.1.4 Records Displayed
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Number of Records Displayed by location:
Location Total
________ _____
Melvyl Web 19,240,310
Searchlight 331,042
Berkeley 67,206
Davis 94,739
Irvine 30,084
Los Angeles 83,121
Riverside 7,562
San Diego 45,795
San Francisco 67,011
Santa Barbara 20,439
Santa Cruz 12,227
NRLF 0
SRLF 0
LBL 9,076
LLL 34,509
Los Alamos 5,314
Other - UC 10,475,601
CSL 0
CSU 9,817
Stanford 11,913
Other - Non UC 1,885,502
_____
32,431,268
Average number of records displayed per hour:
12-2 a.m. 15,002 12-2 p.m. 49,869
2-4 a.m. 9,427 2-4 p.m. 59,654
4-6 a.m. 5,934 4-6 p.m. 54,038
6-8 a.m. 10,399 6-8 p.m. 28,478
8-10 a.m. 28,225 8-10 p.m. 21,899
10-12 a.m. 48,508 10-12 p.m. 20,223
Total number of Records Displayed
Peak hourly load of 113,527 records displayed occurred on 06/29/01 at 3 pm
1.2 Relative Use of Databases
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Number of Number of % of System
Database FIND Commands Records Displayed Searches
________ _____________ _________________ ___________
CAT 516,233 10,235,806 38.2%
TEN 0 0 0.0%
PE 152,088 2,805,645 11.2%
ABI 17,353 94,618 1.3%
BIOSIS 52,448 350,848 3.9%
CC 56,474 967,898 4.2%
IAC databases 99,227 2,711,482 7.3%
MAGS 81,917 2,548,508 6.1%
NEWS 12,408 116,874 0.9%
COMP 4,902 46,100 0.4%
INS databases 91,359 1,813,717 6.8%
INS 40,149 1,519,448 3.0%
INS90 14,795 128,881 1.1%
INS85 12,618 63,223 0.9%
INS80 11,692 38,792 0.9%
INS69 12,105 63,373 0.9%
MED databases 296,849 9,977,588 22.0%
MED 168,337 8,875,204 12.5%
MED90 34,546 581,803 2.6%
MED85 26,524 238,813 2.0%
MED80 23,291 116,785 1.7%
MED75 21,810 82,739 1.6%
MED66 22,341 82,244 1.7%
PSYC 56,191 420,878 4.2%.
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 0.9
Standard deviation in seconds 4.8
Present response time from receipt of present request
at CDL until transmission of present response:
Average in seconds 0.3
Standard deviation in seconds 0.8.
SSMmm/yy srv.sys MELVYL SYSTEM Z39.50 SERVER STATISTICS (monthly)