c# - NewtonSoft Json serializer performance -
i have object serializing json using newtonsoft json.net. object relatively large, resulting json 300kb, serialization process takes around 60 seconds.
the objects serialized plain poco's.
the code using
string json = newtonsoft.json.jsonconvert.serializeobject(data, formatting.indented); is there can done speed serialization, adding attributes etc.
edit: have tested servicestack.text json serializer , takes 48 seconds, still pretty slow.
[serializable] public class appointmentitemviewmodel { public appointmentitemviewmodel() { data = new appointmentdata(); statuses = new list<status>(); closeddays = new list<closedday>(); openhours = new list<openhours>(); } public int currentday { get; set; } public int currentmonth { get; set; } public int currentyear { get; set; } public int day { get; set; } public int month { get; set; } public int year { get; set; } public int firsthour { get; set; } public int lasthour { get; set; } public int currenthour { get; set; } public int step { get; set; } public bool staffonlybookown { get; set; } public bool allowpastappointments { get; set; } public bool allowblocks { get; set; } public bool allowgooglecalendarsync { get; set; } public long currentuser { get; set; } public string debuginfo { get; set; } public bool hasresources { get; set; } public string organisationid { get; set; } public string defaulttab { get; set; } public string startday { get; set; } public bool appointmentbreaksonweek { get; set; } public bool appointmentbreaksonmonth { get; set; } public appointmentdata data { get; set; } public ienumerable<status> statuses { get; set; } public ienumerable<locationstaff> staff { get; set; } public ienumerable<closedday> closeddays { get; set; } public ienumerable<openhours> openhours { get; set; } public iusercontext usercontext() { return servicelocator.current.getinstance<iusercontext>(); } public override string tostring() { // serialize json var sb = new stringbuilder(); stringwriter sw = new stringwriter(sb); using (jsonwriter writer = new jsontextwriter(sw)) { writer.writestartobject(); writeproperty(writer, "currentday", this.currentday); writeproperty(writer, "currentmonth", this.currentmonth); writeproperty(writer, "currentyear", this.currentyear); writeproperty(writer, "day", this.day); writeproperty(writer, "month", this.month); writeproperty(writer, "year", this.year); writeproperty(writer, "firsthour", this.firsthour); writeproperty(writer, "lasthour", this.lasthour); writeproperty(writer, "currenthour", this.currenthour); writeproperty(writer, "step", this.step); writeproperty(writer, "staffonlybookown", this.staffonlybookown); writeproperty(writer, "allowpastappointments", this.allowpastappointments); writeproperty(writer, "allowblocks", this.allowblocks); writeproperty(writer, "allowgooglecalendarsync", this.allowgooglecalendarsync); writeproperty(writer, "currentuser", this.currentuser); writeproperty(writer, "hasresources", this.hasresources); writeproperty(writer, "organisationid", this.organisationid); writeproperty(writer, "defaulttab", this.defaulttab); writeproperty(writer, "startday", this.startday); writeproperty(writer, "appointmentbreaksonweek", this.appointmentbreaksonweek); writeproperty(writer, "appointmentbreaksonmonth", this.appointmentbreaksonmonth); writer.writepropertyname("statuses"); writer.writestartarray(); foreach (var item in this.statuses) { writer.writestartobject(); writeproperty(writer, "id", item.id); writeproperty(writer, "description", item.description); writeproperty(writer, "color", item.color); writer.writeendobject(); } writer.writeendarray(); writer.writepropertyname("staff"); writer.writestartarray(); foreach (var item in this.staff) { writer.writestartobject(); writeproperty(writer, "id", item.id); writeproperty(writer, "name", item.name); writer.writeendobject(); } writer.writeendarray(); writer.writepropertyname("closeddays"); writer.writestartarray(); foreach (var item in this.closeddays) { writer.writestartobject(); writeproperty(writer, "year", item.year); writeproperty(writer, "month", item.month); writeproperty(writer, "day", item.day); writer.writeendobject(); } writer.writeendarray(); writer.writepropertyname("openhours"); writer.writestartarray(); foreach (var item in this.openhours) { writer.writestartobject(); writeproperty(writer, "dayofweek", item.dayofweek); writeproperty(writer, "openhour", item.openhour); writeproperty(writer, "closehour", item.closehour); writer.writeendobject(); } writer.writeendarray(); // main data writer.writepropertyname("data"); writer.writestartobject(); writer.writepropertyname("appointments"); writer.writestartarray(); foreach (var item in this.data.appointments) { writer.writestartobject(); writeproperty(writer, "id", item.id); writeproperty(writer, "appointmentid", item.appointmentid); writeproperty(writer, "year", item.year); writeproperty(writer, "month", item.month); writeproperty(writer, "day", item.day); writeproperty(writer, "starthour", item.starthour); writeproperty(writer, "startminute", item.startminute); writeproperty(writer, "endhour", item.endhour); writeproperty(writer, "endminute", item.endminute); writeproperty(writer, "resourceid", item.resourceid); writeproperty(writer, "description", item.description); writeproperty(writer, "status", item.status); writeproperty(writer, "isclass", item.isclass); writeproperty(writer, "processinglength", item.processinglength); writeproperty(writer, "clientid", item.clientid); writeproperty(writer, "clientname", item.clientname); writeproperty(writer, "clientphone", item.clientphone); writeproperty(writer, "clientnotes", item.clientnotes); writeproperty(writer, "clienthasmobile", item.clienthasmobile); writeproperty(writer, "classfull", item.classfull); writeproperty(writer, "clientwaiting", item.clientwaiting); writeproperty(writer, "promotioncode", item.promotioncode); writeproperty(writer, "arrivalnote", item.arrivalnote); writeproperty(writer, "labels", item.labels); writeproperty(writer, "remindersent", item.remindersent); writeproperty(writer, "cancelled", item.cancelled); writer.writepropertyname("items"); writer.writestartarray(); foreach (var appointmentitem in item.items) { writer.writestartobject(); writeproperty(writer, "name", appointmentitem.name); writeproperty(writer, "length", appointmentitem.length); writeproperty(writer, "processingtime", appointmentitem.processingtime); writeproperty(writer, "resource", appointmentitem.resource); writer.writeendobject(); } writer.writeendarray(); writer.writeendobject(); } writer.writeendarray(); writer.writepropertyname("resources"); writer.writestartarray(); foreach (var item in this.data.resources) { writer.writestartobject(); writeproperty(writer, "id", item.id); writeproperty(writer, "name", item.name); writeproperty(writer, "blocklength", item.blocklength); writeproperty(writer, "starthour", item.starthour); writeproperty(writer, "endhour", item.endhour); writer.writepropertyname("breaks"); writer.writestartarray(); foreach (var breakitem in item.breaks) { writer.writestartobject(); writeproperty(writer, "year", breakitem.year); writeproperty(writer, "month", breakitem.month); writeproperty(writer, "day", breakitem.day); writeproperty(writer, "dayofweek", breakitem.dayofweek); writeproperty(writer, "starthour", breakitem.starthour); writeproperty(writer, "startminute", breakitem.startminute); writeproperty(writer, "length", breakitem.length); writeproperty(writer, "description", breakitem.description); writeproperty(writer, "otherbreak", breakitem.otherbreak); writeproperty(writer, "userbreak", breakitem.userbreak); writer.writeendobject(); } writer.writeendarray(); writer.writepropertyname("openclosebreaks"); writer.writestartarray(); foreach (var breakitem in item.openclosebreaks) { writer.writestartobject(); writeproperty(writer, "year", breakitem.year); writeproperty(writer, "month", breakitem.month); writeproperty(writer, "day", breakitem.day); writeproperty(writer, "dayofweek", breakitem.dayofweek); writeproperty(writer, "starthour", breakitem.starthour); writeproperty(writer, "startminute", breakitem.startminute); writeproperty(writer, "length", breakitem.length); writeproperty(writer, "description", breakitem.description); writeproperty(writer, "otherbreak", breakitem.otherbreak); writeproperty(writer, "userbreak", breakitem.userbreak); writer.writeendobject(); } writer.writeendarray(); writer.writeendobject(); } writer.writeendarray(); writer.writeendobject(); } return sb.tostring(); } private void writeproperty(jsonwriter writer, string name, object value) { writer.writepropertyname(name); if (value == null) { writer.writenull(); } else { writer.writevalue(value); } } } [serializable] public class appointmentdata { public ienumerable<externalevent> exteralevents { get; set; } public ienumerable<appointment> appointments { get; set; } public ienumerable<resource> resources { get; set; } } [serializable] public class closedday { public int year { get; set; } public int month { get; set; } public int day { get; set; } } [serializable] public class appointment { public long id { get; set; } public long appointmentid { get; set; } public int year { get; set; } public int month { get; set; } public int day { get; set; } public int starthour { get; set; } public int startminute { get; set; } public int endhour { get; set; } public int endminute { get; set; } public long resourceid { get; set; } public string description { get; set; } public long status { get; set; } public bool isclass { get; set; } public int processinglength { get; set; } public long clientid { get; set; } public string clientname { get; set; } public string clientphone { get; set; } public string clientnotes { get; set; } public bool clienthasmobile { get; set; } public bool classfull { get; set; } public string clientwaiting { get; set; } public string promotioncode { get; set; } public string arrivalnote { get; set; } public string labels { get; set; } public bool remindersent { get; set; } public bool cancelled { get; set; } public ienumerable<appointmentitems> items { get; set; } } [serializable] public class appointmentitems { public string name { get; set; } public int length { get; set; } public int processingtime { get; set; } public string resource { get; set; } } [serializable] public class openhours { public int dayofweek { get; set; } public int? openhour { get; set; } public int? closehour { get; set; } } [serializable] public class resource { public resource() { breaks = new list<resourcebreak>(); blocks = new list<resourceblock>(); openclosebreaks = new list<resourcebreak>(); } public long id { get; set; } public string name { get; set; } public int blocklength { get; set; } public int starthour { get; set; } public int endhour { get; set; } public ienumerable<resourcebreak> breaks { get; set; } public ienumerable<resourceblock> blocks { get; set; } public ienumerable<resourcebreak> openclosebreaks { get; set; } } [serializable] public class externalevent { public long id { get; set; } public int year { get; set; } public int month { get; set; } public int day { get; set; } public int dayofweek { get; set; } public int starthour { get; set; } public int startminute { get; set; } public int endhour { get; set; } public int endminute { get; set; } public int length { get; set; } public string description { get; set; } } [serializable] public class resourcebreak { public int year { get; set; } public int month { get; set; } public int day { get; set; } public int dayofweek { get; set; } public int starthour { get; set; } public int startminute { get; set; } public int length { get; set; } public string description { get; set; } public bool otherbreak { get; set; } public bool userbreak { get; set; } } [serializable] public class resourceblock { public int starthour { get; set; } public int startminute { get; set; } public int length { get; set; } } [serializable] public class status { public long id { get; set; } public string description { get; set; } public int color { get; set; } } [serializable] public class locationstaff { public long id { get; set; } public string name { get; set; } }
have tried manually serialising object json using json.net? i've found lot faster when have large data , many properties. below example:
public static string serialise(yourobject data) { stringbuilder sb = new stringbuilder(); stringwriter sw = new stringwriter(sb); using (jsonwriter writer = new jsontextwriter(sw)) { writer.writestartobject(); writer.writepropertyname("propertyname1"); if (data.property1 == null) { writer.writenull(); } else { writer.writevalue(data.property1); } writer.writepropertyname("propertyname2"); writer.writestartarray(); foreach (var in data.collectionproperty) { writer.writestartobject(); writer.writepropertyname("p1"); writer.writevalue(something.prop1); writer.writepropertyname("p2"); writer.writevalue(something.prop2); writer.writepropertyname("p3"); writer.writevalue(something.prop3); writer.writeendobject(); } writer.writeendarray(); writer.writeendobject(); } return sb.tostring(); } it means more work, if performance in goal, not find faster option.
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