MELVYL SYSTEM Z39.50 SERVER STATISTICS
Time period: 09/01/01 through 09/30/01
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 780
Searchlight 38,789
Berkeley 2,480
Davis 3,784
Irvine 1,179
Los Angeles 4,115
Riverside 628
San Diego 1,847
San Francisco 2,275
Santa Barbara 899
Santa Cruz 239
NRLF 0
SRLF 0
LBL 764
LLL 75
Los Alamos 3
Other - UC 570,250
CSL 0
CSU 808
Stanford 931
Other - Non UC 271,135
_____
900,981
1.1.2 Active users
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Average number of active users in a 2 minute interval:
12-2 a.m. 71 12-2 p.m. 262
2-4 a.m. 33 2-4 p.m. 304
4-6 a.m. 27 4-6 p.m. 289
6-8 a.m. 50 6-8 p.m. 167
8-10 a.m. 142 8-10 p.m. 123
10-12 a.m. 262 10-12 p.m. 103
Total connect hours for MELVYL MEDLINE:
For UC users (hrs:mins) 11602.60
For Non-UC users (hrs:mins) 262.33
1.1.3 FIND commands
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Number of FIND commands issued by location:
Location Total
________ _____
Melvyl Web 19
Searchlight 38,683
Berkeley 10,220
Davis 7,294
Irvine 2,751
Los Angeles 7,800
Riverside 1,180
San Diego 3,653
San Francisco 4,738
Santa Barbara 1,951
Santa Cruz 745
NRLF 0
SRLF 0
LBL 1,396
LLL 129
Los Alamos 6
Other - UC 838,295
CSL 0
CSU 895
Stanford 1,073
Other - Non UC 454,675
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1,375,503
Average number of FIND commands per hour:
12-2 a.m. 1,641 12-2 p.m. 1,921
2-4 a.m. 1,230 2-4 p.m. 2,141
4-6 a.m. 941 4-6 p.m. 1,874
6-8 a.m. 986 6-8 p.m. 1,224
8-10 a.m. 1,434 8-10 p.m. 935
10-12 a.m. 1,990 10-12 p.m. 1,517
Total number of FIND commands
Peak hourly load of 5,655 FIND commands occurred on 09/22/01 at 1 am
1.1.4 Records Displayed
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Number of Records Displayed by location:
Location Total
________ _____
Melvyl Web 476
Searchlight 0
Berkeley 243,917
Davis 103,784
Irvine 137,312
Los Angeles 72,485
Riverside 18,329
San Diego 30,697
San Francisco 107,451
Santa Barbara 53,612
Santa Cruz 6,394
NRLF 0
SRLF 0
LBL 19,972
LLL 3,087
Los Alamos 63
Other - UC 24,910,501
CSL 0
CSU 8,465
Stanford 10,161
Other - Non UC 2,377,141
_____
28,103,847
Average number of records displayed per hour:
12-2 a.m. 12,581 12-2 p.m. 41,914
2-4 a.m. 7,122 2-4 p.m. 49,163
4-6 a.m. 5,758 4-6 p.m. 42,801
6-8 a.m. 9,208 6-8 p.m. 25,477
8-10 a.m. 25,456 8-10 p.m. 19,384
10-12 a.m. 44,038 10-12 p.m. 17,470
Total number of Records Displayed
Peak hourly load of 94,598 records displayed occurred on 09/21/01 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 696,914 9,402,777 50.7%
TEN 0 0 0.0%
PE 153,209 2,872,787 11.1%
ABI 11,059 71,235 0.8%
BIOSIS 46,820 312,714 3.4%
CC 45,782 829,333 3.3%
IAC databases 59,122 1,520,353 4.3%
MAGS 48,757 1,423,881 3.5%
NEWS 6,454 48,479 0.5%
COMP 3,911 47,993 0.3%
INS databases 72,407 1,433,536 5.3%
INS 33,387 1,220,810 2.4%
INS90 11,242 88,971 0.8%
INS85 9,576 42,632 0.7%
INS80 8,905 30,159 0.6%
INS69 9,297 50,964 0.7%
MED databases 235,525 8,942,406 17.1%
MED 142,857 7,834,947 10.4%
MED90 26,956 593,467 2.0%
MED85 19,002 218,953 1.4%
MED80 16,223 115,209 1.2%
MED75 15,137 88,848 1.1%
MED66 15,350 90,982 1.1%
PSYC 44,320 339,538 3.2%.
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 0.8
Standard deviation in seconds 5.6
Present response time from receipt of present request
at CDL until transmission of present response:
Average in seconds 0.3
Standard deviation in seconds 1.6.
SSMmm/yy srv.sys MELVYL SYSTEM Z39.50 SERVER STATISTICS (monthly)