server/AyaNova/generator/CoreJobMetricsSnapshot.cs

@@ -35,13 +35,56 @@ namespace AyaNova.Biz
             //Gather stats, output to database but only every minute or more
              /*  
              //TODO: figure out teh best format to store it in based on what I need at the client end
+            // TODO: Use one data table per interval, it's more efficient for all values
+                i.e. for one minute stuff use a single table, for 10 minute use another otherwise will have empty entries in some
+                (test storing null in two columns results in same size so no saving)
+
+            // todo: store data using Postgres REAL / c# float datatype, is 38mb vs 55 for double precision with one year 10 column test data
+            
+
+
+  Make a chart at client with test data from digital ocean to play with
+                    try to replicate their stuff to learn how to best do it
+                Downsampling, should I convert old data to downsampled so I can keep more of it or is this presentation only
+                    depends on storage space I guess
+                seperate tables per metric?
+                    Seems likely since there would be less data to move around, but if I'm fetching all anyway??
+                    hmm... something to consider / experiment with
+
+                Some D.O. charts have max value at top of left axis (y?) that change with the range and values and some have 100% or 1.0 and never change that axis
+
+
+
+////////////////////////////////////////////////////////////////
+TESTING / SCRATCH PAD:
+
             //  retention setting defaults to 1 year?
                 Generate sample data, see how large it would be under various scenarios
                     i.e. if I gather every minute, how much can I practically store?
                         Shortest time frame that is shown for DO is 1 minute intervals (6 hour / 360 entries)
                     RESULT:
                         525600 entries (every minute for 1 year) results in 22mb of space used
+                        Same but with 10 different data columns results in 59mb used
+            ####### USE ONE TABLE:  if it was individual tables it would be 220 mb used so it's worth using one table for all values
+
                         query: insert into ametriccpu (t,v) select CURRENT_TIMESTAMP, 58.43239007949476 from generate_series(1, 525600) s(i)
+                        insert into ametriccpu (
+    t,v1,v2,v3,v4,v5,v6,v7,v8,v9,v10
+)
+select
+    LOCALTIMESTAMP,
+   58.43239007949476,
+   0.33006058073955513,
+   102.44723488288768,
+  46.078341513002755,
+   30.23570573933185,
+   0.000136518543824419,
+   65.8400891412282,
+    0.01,
+   58.43239007949476,
+   58.43239007949476
+   
+from generate_series(1, 525600) s(i)
                         
                     Timestamp, decimal/float value (need to determine this number type)
                         Number types do has this: 
@@ -52,16 +95,9 @@ namespace AyaNova.Biz
                             disk sectors written: 0.000136518543824419
                             memory avg: 65.8400891412282
                             load: 0.01
-                Make a chart at client with test data from digital ocean to play with
-                    try to replicate their stuff to learn how to best do it
-                Downsampling, should I convert old data to downsampled so I can keep more of it or is this presentation only
-                    depends on storage space I guess
-                seperate tables per metric?
-                    Seems likely since there would be less data to move around, but if I'm fetching all anyway??
-                    hmm... something to consider / experiment with
-
-                Some D.O. charts have max value at top of left axis (y?) that change with the range and values and some have 100% or 1.0 and never change that axis
 
+                        
+              
                 
                 
                 

server/AyaNova/models/AyContext.cs

@@ -5,7 +5,7 @@ namespace AyaNova.Models
 {
     public partial class AyContext : DbContext
     {
-        public virtual DbSet<MetricCPU> MetricCPU { get; set; }
+        public virtual DbSet<MetricMM> MetricMM { get; set; }
         public virtual DbSet<User> User { get; set; }
         public virtual DbSet<UserOptions> UserOptions { get; set; }
         public virtual DbSet<Widget> Widget { get; set; }
@@ -127,7 +127,7 @@ namespace AyaNova.Models
             //modelBuilder.Entity<PurchaseOrder>().Property(z => z.Serial).UseIdentityByDefaultColumn();
 
             
-            modelBuilder.Entity<MetricCPU>().HasNoKey();
+            //modelBuilder.Entity<MetricCPU>().HasNoKey();
 
             ///////////////////////////////////////////////////////////////////////
             //TODO: this entire block is almost certainly wrong or not required

server/AyaNova/util/AySchema.cs

@@ -245,7 +245,7 @@ namespace AyaNova.Util
 
                 //METRICS TABLES
                 //CPU
-                 await ExecQueryAsync("CREATE TABLE ametriccpu (t timestamp not null, v double precision not null default 0)");
+                 await ExecQueryAsync("CREATE TABLE ametricmm (t timestamp not null, v real not null default 0)");
 
 
                 //SEARCH TABLES

server/AyaNova/util/Seeder.cs

@@ -91,10 +91,11 @@ namespace AyaNova.Util
                 //TEST METRICS SIZE
                 using (var cct = ServiceProviderProvider.DBContext)
                 {
+                      Faker Fake = new Faker();
                     var TestCount = 365 * 24 * 60;//525600 minutes in a year
                     for (int i = 0; i < TestCount; i++)
                     {
-                        cct.MetricCPU.Add(new MetricCPU() { v = 33.33333 });
+                        cct.MetricMM.Add(new MetricMM() { v = Fake.Finance.Random.Float() });
                     }
                     cct.SaveChanges();