MELVYL SYSTEM Z39.50 SERVER STATISTICS
Time period: 03/01/01 through 03/31/01
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 859,570
Searchlight 218,845
Berkeley 2,780
Davis 5,285
Irvine 1,483
Los Angeles 2,635
Riverside 618
San Diego 3,703
San Francisco 2,776
Santa Barbara 845
Santa Cruz 520
NRLF 0
SRLF 0
LBL 250
LLL 163
Los Alamos 15
Other - UC 5,467
CSL 0
CSU 1,238
Stanford 891
Other - Non UC 219,702
_____
1,326,786
1.1.2 Active users
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Average number of active users in a 2 minute interval:
12-2 a.m. 98 12-2 p.m. 384
2-4 a.m. 45 2-4 p.m. 439
4-6 a.m. 43 4-6 p.m. 385
6-8 a.m. 63 6-8 p.m. 238
8-10 a.m. 183 8-10 p.m. 223
10-12 a.m. 352 10-12 p.m. 205
Total connect hours for MELVYL MEDLINE:
For UC users (hrs:mins) 16139.67
For Non-UC users (hrs:mins) 273.03
1.1.3 FIND commands
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Number of FIND commands issued by location:
Location Total
________ _____
Melvyl Web 1,326,281
Searchlight 168,960
Berkeley 7,456
Davis 10,367
Irvine 2,302
Los Angeles 5,728
Riverside 1,450
San Diego 7,514
San Francisco 6,560
Santa Barbara 1,985
Santa Cruz 1,177
NRLF 0
SRLF 0
LBL 421
LLL 362
Los Alamos 57
Other - UC 12,328
CSL 0
CSU 1,558
Stanford 1,473
Other - Non UC 287,576
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1,843,555
Average number of FIND commands per hour:
12-2 a.m. 1,069 12-2 p.m. 3,031
2-4 a.m. 549 2-4 p.m. 3,211
4-6 a.m. 481 4-6 p.m. 2,726
6-8 a.m. 808 6-8 p.m. 1,667
8-10 a.m. 1,808 8-10 p.m. 1,678
10-12 a.m. 2,878 10-12 p.m. 1,550
Total number of FIND commands
Peak hourly load of 5,466 FIND commands occurred on 03/05/01 at 11 am
1.1.4 Records Displayed
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Number of Records Displayed by location:
Location Total
________ _____
Melvyl Web 42,300,047
Searchlight 872,121
Berkeley 97,993
Davis 132,398
Irvine 26,619
Los Angeles 71,172
Riverside 24,140
San Diego 53,162
San Francisco 59,092
Santa Barbara 22,756
Santa Cruz 16,452
NRLF 0
SRLF 0
LBL 6,807
LLL 9,265
Los Alamos 3,958
Other - UC 161,055
CSL 0
CSU 12,787
Stanford 8,991
Other - Non UC 2,534,029
_____
46,412,844
Average number of records displayed per hour:
12-2 a.m. 19,855 12-2 p.m. 65,823
2-4 a.m. 8,873 2-4 p.m. 72,984
4-6 a.m. 8,325 4-6 p.m. 62,530
6-8 a.m. 11,241 6-8 p.m. 38,535
8-10 a.m. 33,424 8-10 p.m. 37,319
10-12 a.m. 59,435 10-12 p.m. 32,939
Total number of Records Displayed
Peak hourly load of 152,986 records displayed occurred on 03/30/01 at 1 am
1.2 Relative Use of Databases
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Number of Number of % of System
Database FIND Commands Records Displayed Searches
________ _____________ _________________ ___________
CAT 704,108 14,999,825 38.2%
TEN 0 0 0.0%
PE 202,223 3,819,854 11.0%
ABI 26,438 165,933 1.4%
BIOSIS 70,030 526,635 3.8%
CC 70,639 1,138,657 3.8%
IAC databases 183,088 5,329,633 9.9%
MAGS 155,913 5,027,772 8.5%
NEWS 19,310 214,651 1.0%
COMP 7,865 87,210 0.4%
INS databases 102,685 1,996,555 5.6%
INS 45,719 1,683,532 2.5%
INS90 16,719 141,102 0.9%
INS85 13,932 65,576 0.8%
INS80 13,089 45,323 0.7%
INS69 13,226 61,022 0.7%
MED databases 374,393 12,921,863 20.3%
MED 206,891 11,373,137 11.2%
MED90 44,492 819,405 2.4%
MED85 34,296 303,396 1.9%
MED80 30,535 164,996 1.7%
MED75 28,845 122,844 1.6%
MED66 29,334 138,085 1.6%
PSYC 89,268 710,064 4.8%.
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)