MELVYL SYSTEM Z39.50 SERVER STATISTICS
Time period: 07/01/01 through 07/31/01
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 2,948
Searchlight 58,523
Berkeley 2,643
Davis 3,678
Irvine 1,420
Los Angeles 2,600
Riverside 383
San Diego 1,824
San Francisco 2,994
Santa Barbara 1,344
Santa Cruz 310
NRLF 0
SRLF 0
LBL 324
LLL 90
Los Alamos 8
Other - UC 651,724
CSL 0
CSU 811
Stanford 1,367
Other - Non UC 237,518
_____
970,509
1.1.2 Active users
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Average number of active users in a 2 minute interval:
12-2 a.m. 70 12-2 p.m. 291
2-4 a.m. 31 2-4 p.m. 356
4-6 a.m. 25 4-6 p.m. 340
6-8 a.m. 54 6-8 p.m. 188
8-10 a.m. 171 8-10 p.m. 113
10-12 a.m. 311 10-12 p.m. 103
Total connect hours for MELVYL MEDLINE:
For UC users (hrs:mins) 16241.97
For Non-UC users (hrs:mins) 264.90
1.1.3 FIND commands
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Number of FIND commands issued by location:
Location Total
________ _____
Melvyl Web 2,008
Searchlight 58,289
Berkeley 6,290
Davis 7,397
Irvine 2,799
Los Angeles 6,084
Riverside 1,131
San Diego 3,549
San Francisco 6,807
Santa Barbara 2,685
Santa Cruz 763
NRLF 0
SRLF 0
LBL 901
LLL 178
Los Alamos 22
Other - UC 993,994
CSL 0
CSU 1,441
Stanford 1,792
Other - Non UC 284,824
_____
1,380,954
Average number of FIND commands per hour:
12-2 a.m. 946 12-2 p.m. 2,277
2-4 a.m. 590 2-4 p.m. 2,642
4-6 a.m. 468 4-6 p.m. 2,283
6-8 a.m. 817 6-8 p.m. 1,303
8-10 a.m. 1,694 8-10 p.m. 870
10-12 a.m. 2,477 10-12 p.m. 865
Total number of FIND commands
Peak hourly load of 5,429 FIND commands occurred on 07/23/01 at 10 am
1.1.4 Records Displayed
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Number of Records Displayed by location:
Location Total
________ _____
Melvyl Web 3,191
Searchlight 0
Berkeley 78,892
Davis 123,497
Irvine 29,151
Los Angeles 70,856
Riverside 11,438
San Diego 111,700
San Francisco 66,753
Santa Barbara 33,126
Santa Cruz 9,457
NRLF 0
SRLF 0
LBL 22,189
LLL 18,539
Los Alamos 230
Other - UC 30,522,071
CSL 0
CSU 13,906
Stanford 12,538
Other - Non UC 2,060,151
_____
33,187,685
Average number of records displayed per hour:
12-2 a.m. 12,490 12-2 p.m. 50,399
2-4 a.m. 6,855 2-4 p.m. 61,800
4-6 a.m. 5,330 4-6 p.m. 56,389
6-8 a.m. 9,535 6-8 p.m. 29,453
8-10 a.m. 29,982 8-10 p.m. 18,296
10-12 a.m. 52,408 10-12 p.m. 16,082
Total number of Records Displayed
Peak hourly load of 126,256 records displayed occurred on 07/27/01 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 547,823 9,998,158 39.7%
TEN 0 0 0.0%
PE 161,437 2,894,065 11.7%
ABI 14,688 86,621 1.1%
BIOSIS 49,514 342,008 3.6%
CC 53,065 976,598 3.8%
IAC databases 84,038 2,276,594 6.1%
MAGS 70,392 2,149,343 5.1%
NEWS 9,652 84,054 0.7%
COMP 3,994 43,197 0.3%
INS databases 83,347 1,733,311 6.0%
INS 38,657 1,469,958 2.8%
INS90 13,189 113,345 1.0%
INS85 10,975 56,825 0.8%
INS80 10,086 35,863 0.7%
INS69 10,440 57,320 0.8%
MED databases 314,526 11,340,391 22.8%
MED 183,074 10,058,013 13.3%
MED90 36,205 680,256 2.6%
MED85 27,205 263,972 2.0%
MED80 23,753 140,158 1.7%
MED75 21,921 97,966 1.6%
MED66 22,368 100,026 1.6%
PSYC 58,030 453,292 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 5.2
Present response time from receipt of present request
at CDL until transmission of present response:
Average in seconds 0.3
Standard deviation in seconds 1.0.
SSMmm/yy srv.sys MELVYL SYSTEM Z39.50 SERVER STATISTICS (monthly)