linux - GNUPLOT Illegal day of month -

-

i trying make graph out of stat.dat file containing:

----system---- ----total-cpu-usage---- ------memory-usage----- -net/total-      time     |usr sys idl wai hiq siq| used  buff  cach  free| recv  send 22-04 16:44:48|  0   0 100   0   0   0| 162m 57.1m  360m 3376m|   0     0 22-04 16:44:58|  0   0 100   0   0   0| 161m 57.1m  360m 3377m| 180b  317b

and have gnu.sh containing:

#!/usr/bin/gnuplot set terminal png set output "top.png" set title "cpu usage" set xlabel "time" set ylabel "percentage" set xdata time set timefmt "%d-%m %h:%m:%s" set format x "%h:%m" plot "stat.dat"  using 1:3 title "system" lines, \ "stat.dat" using 1:2 title "user" lines, \ "stat.dat" using 1:4 title "idle" lines

when run gnu file receive error:

could not find/open font when opening font "/usr/share/fonts/truetype/ttf-liberation/liberationsans-regular.ttf", using internal non-scalable font ----system---- ----total-cpu-usage---- ------memory-usage----- -net/total... stat.dat:1:"./gnu.sh", line 12: illegal day of month

is familiar error , solution help?

when parsing first line of data file, gnuplot encounters illegal day of month.

you must somehow skip first 2 lines of data file before parsed. using version 5.0 or 4.6.6 can use new skip option achieve this. skips number of lines @ beginning of data file without parsing them (as opposed every, can skip number of lines after parsing, still give error):

set xdata time set timefmt "%d-%m %h:%m:%s" set format x "%h:%m" set style data lines set border plot "stat.dat" using 1:4 skip 2 lw 3 title "system", \      "" using 1:3 skip 2 lw 3 title "user", \      "" using 1:5 skip 2 lw 3 title "idle"

note also, column counting wrong. date contains white space, counts 2 columns when refer following values.

alternatively, if don't have version 5.0 or 4.6.6, can use external tool tail skip first 2 lines:

set xdata time set timefmt "%d-%m %h:%m:%s" set format x "%h:%m" set style data lines set border plot "< tail -n +3 stat.dat" using 1:4 lw 3 title "system", \      "" using 1:3 lw 3 title "user", \      "" using 1:5 lw 3 title "idle"

Comments

Post a Comment

Popular posts from this blog

c++ - No viable overloaded operator for references a map -

-
i trying use map can make tag names reference number. when try , use it, in code error (6 in total every time reference map): src/main.cpp:25:45: error: no viable overloaded operator[] type 'std::map<std::string, std::string>' const char* idcs = node.child_value(tagmap[3]); this code: #include "pugi/pugixml.hpp" #include <iostream> #include <string> #include <map> int main() { pugi::xml_document doca, docb; std::map<std::string, pugi::xml_node> mapa, mapb; std::map<std::string, std::string> tagmap {{"1", "data"}, {"2", "entry"}, {"3", "id"}, {"4", "content"}}; if (!doca.load_file("a.xml") || !docb.load_file("b.xml")) { std::cout << "can't find input files"; return 1; } (auto& node: doca.child(tagmap[1]).children(tagmap[2])) { co
Read more

java - Custom OutputStreamAppender not run: LOGBACK: No context given for <MYAPPENDER> -

-
i wish write custom appender on basis of outputstreamappender . wrote following class package tests; import java.io.ioexception; import java.io.outputstream; import ch.qos.logback.core.outputstreamappender; public class myappender<e> extends outputstreamappender<e> { public myappender() { system.out.println("myappender created"); setoutputstream(new outputstream() { @override public void write(int b) throws ioexception { throw new unsupportedoperationexception(); } }); } } then wrote following runner: package tests; import org.slf4j.loggerfactory; import ch.qos.logback.classic.logger; public class runner { private static final logger log = (logger) loggerfactory.getlogger(runner.class); public static void main(string[] args) { //log.addappender(new myappender<iloggingevent>()); log.info("hello world"); } } finall
Read more

java - Cannot secure connection using TLS -

-
i'm trying establish secure socket connection between java client applet (built jdk 1.7.0_75-b13) , vc++ server application. as test vehicle, used vc++ client/server sample found in msdn forums, modified use schannel , able establish socket using cipher suite tls_rsa_with_aes_128_cbc_sha. works of tls 1.0/1.1/1.2. when try opening socket java applet same server application, connection rejected server reporting following: tls 1.0 acceptsecuritycontext failed: 0x80090327 tls 1.1 acceptsecuritycontext failed: 0x80090331 tls 1.2 acceptsecuritycontext failed: 0x80090331 this java code used create socket: debugprint("setting secure connection"); sslsocketfactory sslsocketfactory = (sslsocketfactory) sslsocketfactory.getdefault(); sslsocket sslsocket = (sslsocket) sslsocketfactory.createsocket("127.0.0.1", socketnumber); debugprint("starting handshake"); sslsocket.settcpnodelay(true); sslsocket.setsolinger(false, 0); sslsocket.s
Read more