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15%
Filesystem Murder Mystery
09.04.2019
Home »  Archive  »  2019  »  Issue 50: Bpfilter  » 
Lead Image © Lucy Baldwin, 123RF.com
() = 1000 19:00:09 access("3GB", W_OK) = 0 19:00:09 rename("3GB.copy", "3GB") = 0 19:00:18 lseek(0, 0, SEEK_CUR) = -1 ESPIPE (Illegal seek) 19:00:18 close(0) = 0
15%
Serverless computing with AWS Lambda
30.01.2020
Home »  Archive  »  2020  »  Issue 55: AWS L...  » 
Lead Image © joingate, 123RF.com
Id: 4e90b424-95d9-4453-a2f4-8f5259f5f263 Duration: 70.72 ms Billed Duration: 100 ms Memory Size: 128 MB Max Memory Used: 55 MB Init Duration: 129.20 ms More or Less
15%
Profiling Python Code
09.12.2019
Home »  HPC  »  Articles  » 
 to check follows a, b = 1,2 c = a + b # Code to check ends end_time = time.time() time_taken = (end_time- start_time)   print(" Time taken in seconds: {0} s").format(time_taken_in_micro) If a section of code
15%
Profiling Python code
30.01.2020
Home »  Archive  »  2020  »  Issue 55: AWS L...  » 
Lead Image ©-Yong Hian Lim, Fotolia.com
_time) print(" Time taken in seconds: {0} s").format(time_taken_in_micro) If a section of code is called repeatedly, just sum the elapsed times for the section and sum the number of times that section
14%
Measuring the performance of code
04.08.2020
Home »  Archive  »  2020  »  Issue 58: Graph...  » 
Lead Image © Lucy Baldwin, 123RF.com
statistic[loops] = { 0 }; 41 42 struct timespec tdummy; 43 stats sdummy[4] = { 0 }; 44 45 for (unsigned probe = 0; probe < probes; ++probe) { 46 uint64_t accu0 = 0; 47 uint64_t accu1 = 0; 48
14%
Understanding the Status of Your Filesystem
18.06.2014
Home »  HPC  »  Articles  » 
- 730 days]:   5438  (  1.40%)  ( 40.51% cumulative)    [ 730-1095 days]:  39339  ( 10.14%)  ( 50.65% cumulative)    [1095-1460 days]: 190052  ( 48.97%)  ( 99.62% cumulative)    [1460-1825 days]:    602  (  0
14%
Samba pitfalls in daily operation
01.08.2019
Home »  Archive  »  2019  »  Issue 52: Stop...  » 
Lead Image © lightwise, 123RF.com
.SEC_FLAG_MAXIMUM_ALLOWED) Listing 3 ACL Error Message root@addc-01:~# samba-tool gpo aclcheck -U administrator Password for [EXAMPLE\administrator]: ERROR: Invalid GPO ACL O:DAG:DAD:PAI(A;OICI;0x001f01ff;;;DA)(A;OICI;0x001
14%
Have a Bash with the Zing network utility
25.09.2023
Home »  Archive  »  2023  »  Issue 77: Secur...  » 
Photo by Micah Tindell on Unsplash
: 55 ms. Port: 80: op 2.1. 10.0.0.23 80 Time: 26 ms. Port: 80: op 2.2. 10.0.0.23 80 Time: 56 ms. Port: 80: op 3.1. 10.0.0.23 80 Time: 25 ms. Port: 80: op 3.2. 10.0.0.23 80 Time: 48 ms. Port: 80: op 4
14%
HTTP/1.1 versus HTTP/2 and HTTP/3
30.05.2021
Home »  Archive  »  2021  »  Issue 63: Autom...  » 
Lead Image © alphaspirit, 123RF.com
for exchanging HTML documents (HTTP) A server that grants access to the document (the HTTP daemon, HTTPD) Single-Line Protocol HTTP/0.9 The original version of HTTP had no version number. To distinguish
13%
Getting started with the Apache Cassandra database
06.10.2019
Home »  Archive  »  2019  »  Issue 53: Secur...  » 
Photo by Almos Bechtold on Unsplash
, represents Unix time (i.e., the number of seconds since January 1, 1970, 0:00 hours). It is multiplied here by 1,000 to obtain the value in milliseconds needed by Cassandra. Also bear in mind that this time

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